CVE-2019-16056 (GCVE-0-2019-16056)

Vulnerability from cvelistv5 – Published: 2019-09-06 17:24 – Updated: 2026-10-14 06:50
VLAI
Summary
An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 18:12 UTC
CWE
  • n/a
  • CWE-20 - Improper Input Validation
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2146 records in the last 180 days details
References
URL Tags
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/4151-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4151-2/ vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2019:3725 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://access.redhat.com/errata/RHSA-2019:3948 vendor-advisoryx_refsource_REDHAT
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
https://www.oracle.com/security-alerts/cpujul2020.html x_refsource_MISC
https://bugs.python.org/issue34155 x_refsource_MISC
https://github.com/python/cpython/commit/8cb65d13… x_refsource_MISC
https://security.netapp.com/advisory/ntap-2019092… x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r1b103833cb5… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://cert-portal.siemens.com/productcert/html/…
Impacted products
Vendor Product Version CPE status
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T01:03:32.645Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "FEDORA-2019-4954d8773c",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
          },
          {
            "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1925-1] python2.7 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
          },
          {
            "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1924-1] python3.4 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
          },
          {
            "name": "FEDORA-2019-50772cf122",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
          },
          {
            "name": "FEDORA-2019-5dc275c9f2",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
          },
          {
            "name": "FEDORA-2019-2b1f72899a",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
          },
          {
            "name": "USN-4151-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4151-1/"
          },
          {
            "name": "USN-4151-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4151-2/"
          },
          {
            "name": "openSUSE-SU-2019:2389",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
          },
          {
            "name": "openSUSE-SU-2019:2393",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
          },
          {
            "name": "FEDORA-2019-232f092db0",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
          },
          {
            "name": "FEDORA-2019-986622833f",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
          },
          {
            "name": "FEDORA-2019-aba3cca74a",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
          },
          {
            "name": "openSUSE-SU-2019:2438",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
          },
          {
            "name": "RHSA-2019:3725",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3725"
          },
          {
            "name": "openSUSE-SU-2019:2453",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
          },
          {
            "name": "FEDORA-2019-0d3fcae639",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
          },
          {
            "name": "FEDORA-2019-74ba24605e",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
          },
          {
            "name": "FEDORA-2019-b06ec6159b",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
          },
          {
            "name": "FEDORA-2019-758824a3ff",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
          },
          {
            "name": "FEDORA-2019-d202cda4f8",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
          },
          {
            "name": "FEDORA-2019-57462fa10d",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
          },
          {
            "name": "RHSA-2019:3948",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3948"
          },
          {
            "name": "FEDORA-2019-7ec5bb5d22",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
          },
          {
            "name": "FEDORA-2019-a268ba7b23",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
          },
          {
            "name": "openSUSE-SU-2020:0086",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.python.org/issue34155"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
          },
          {
            "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
          },
          {
            "name": "[bookkeeper-issues] 20200729 [GitHub] [bookkeeper] padma81 opened a new issue #2387: Security vulnerabilities in the apache/bookkeeper-4.9.2 image",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
          },
          {
            "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2019-16056",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T18:12:26.291451Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-20",
                "description": "CWE-20 Improper Input Validation",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T18:14:31.346Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-14T06:50:11.813Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-08-22T16:06:09.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "FEDORA-2019-4954d8773c",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
        },
        {
          "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1925-1] python2.7 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
        },
        {
          "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1924-1] python3.4 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
        },
        {
          "name": "FEDORA-2019-50772cf122",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
        },
        {
          "name": "FEDORA-2019-5dc275c9f2",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
        },
        {
          "name": "FEDORA-2019-2b1f72899a",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
        },
        {
          "name": "USN-4151-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4151-1/"
        },
        {
          "name": "USN-4151-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4151-2/"
        },
        {
          "name": "openSUSE-SU-2019:2389",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
        },
        {
          "name": "openSUSE-SU-2019:2393",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
        },
        {
          "name": "FEDORA-2019-232f092db0",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
        },
        {
          "name": "FEDORA-2019-986622833f",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
        },
        {
          "name": "FEDORA-2019-aba3cca74a",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
        },
        {
          "name": "openSUSE-SU-2019:2438",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
        },
        {
          "name": "RHSA-2019:3725",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3725"
        },
        {
          "name": "openSUSE-SU-2019:2453",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
        },
        {
          "name": "FEDORA-2019-0d3fcae639",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
        },
        {
          "name": "FEDORA-2019-74ba24605e",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
        },
        {
          "name": "FEDORA-2019-b06ec6159b",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
        },
        {
          "name": "FEDORA-2019-758824a3ff",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
        },
        {
          "name": "FEDORA-2019-d202cda4f8",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
        },
        {
          "name": "FEDORA-2019-57462fa10d",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
        },
        {
          "name": "RHSA-2019:3948",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3948"
        },
        {
          "name": "FEDORA-2019-7ec5bb5d22",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
        },
        {
          "name": "FEDORA-2019-a268ba7b23",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
        },
        {
          "name": "openSUSE-SU-2020:0086",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.python.org/issue34155"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
        },
        {
          "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
        },
        {
          "name": "[bookkeeper-issues] 20200729 [GitHub] [bookkeeper] padma81 opened a new issue #2387: Security vulnerabilities in the apache/bookkeeper-4.9.2 image",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
        },
        {
          "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-16056",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "FEDORA-2019-4954d8773c",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
            },
            {
              "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1925-1] python2.7 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
            },
            {
              "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1924-1] python3.4 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
            },
            {
              "name": "FEDORA-2019-50772cf122",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
            },
            {
              "name": "FEDORA-2019-5dc275c9f2",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
            },
            {
              "name": "FEDORA-2019-2b1f72899a",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
            },
            {
              "name": "USN-4151-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4151-1/"
            },
            {
              "name": "USN-4151-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4151-2/"
            },
            {
              "name": "openSUSE-SU-2019:2389",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
            },
            {
              "name": "openSUSE-SU-2019:2393",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
            },
            {
              "name": "FEDORA-2019-232f092db0",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
            },
            {
              "name": "FEDORA-2019-986622833f",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
            },
            {
              "name": "FEDORA-2019-aba3cca74a",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
            },
            {
              "name": "openSUSE-SU-2019:2438",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
            },
            {
              "name": "RHSA-2019:3725",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3725"
            },
            {
              "name": "openSUSE-SU-2019:2453",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
            },
            {
              "name": "FEDORA-2019-0d3fcae639",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
            },
            {
              "name": "FEDORA-2019-74ba24605e",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
            },
            {
              "name": "FEDORA-2019-b06ec6159b",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
            },
            {
              "name": "FEDORA-2019-758824a3ff",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
            },
            {
              "name": "FEDORA-2019-d202cda4f8",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
            },
            {
              "name": "FEDORA-2019-57462fa10d",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
            },
            {
              "name": "RHSA-2019:3948",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3948"
            },
            {
              "name": "FEDORA-2019-7ec5bb5d22",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
            },
            {
              "name": "FEDORA-2019-a268ba7b23",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
            },
            {
              "name": "openSUSE-SU-2020:0086",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuapr2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujul2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
            },
            {
              "name": "https://bugs.python.org/issue34155",
              "refsource": "MISC",
              "url": "https://bugs.python.org/issue34155"
            },
            {
              "name": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9",
              "refsource": "MISC",
              "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20190926-0005/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
            },
            {
              "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
            },
            {
              "name": "[bookkeeper-issues] 20200729 [GitHub] [bookkeeper] padma81 opened a new issue #2387: Security vulnerabilities in the apache/bookkeeper-4.9.2 image",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E"
            },
            {
              "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-16056",
    "datePublished": "2019-09-06T17:24:35.000Z",
    "dateReserved": "2019-09-06T00:00:00.000Z",
    "dateUpdated": "2026-10-14T06:50:11.813Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2019-16056",
      "date": "2026-11-14",
      "epss": "0.0512",
      "percentile": "0.92518"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "6487B78A-9CFC-43DF-8420-C41E14DE0C93",
                  "versionEndIncluding": "2.7.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "153873D5-6469-468B-8E51-8BD69369603D",
                  "versionEndIncluding": "3.0.1",
                  "versionStartIncluding": "3.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "2F1E5343-DF7E-4CEF-B7E6-1F96E88060FB",
                  "versionEndIncluding": "3.1.5",
                  "versionStartIncluding": "3.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "5B874AB9-7840-4995-8634-85BED9638486",
                  "versionEndIncluding": "3.2.6",
                  "versionStartIncluding": "3.2.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "B10A1DCA-2F1C-46C4-99DE-B3AF0800CA85",
                  "versionEndIncluding": "3.3.7",
                  "versionStartIncluding": "3.3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "2F8A9AE3-4B12-4066-A633-F6AEFAB7AB26",
                  "versionEndIncluding": "3.4.10",
                  "versionStartIncluding": "3.4.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "81044065-FF98-4F09-AC46-AE09D64A04B5",
                  "versionEndIncluding": "3.5.7",
                  "versionStartIncluding": "3.5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "11B81F2B-AEE3-4C49-8A1E-A29CAB31AA95",
                  "versionEndIncluding": "3.6.9",
                  "versionStartIncluding": "3.6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E761E073-D3A0-45A7-92B1-DE26860C193E",
                  "versionEndIncluding": "3.7.4",
                  "versionStartIncluding": "3.7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
                  "matchCriteriaId": "D100F7CE-FC64-4CC6-852A-6136D72DA419",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                  "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                  "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
                  "matchCriteriaId": "CB66DB75-2B16-4EBF-9B93-CE49D8086E41",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                  "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                  "matchCriteriaId": "7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                  "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
                  "matchCriteriaId": "CD783B0C-9246-47D9-A937-6144FE8BFF0F",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9D7EE4B6-A6EC-4B9B-91DF-79615796673F",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:oracle:communications_operations_monitor:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9264AF8A-3819-40E5-BBCB-3B6C95A0D828",
                  "versionEndIncluding": "4.3",
                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*",
                  "matchCriteriaId": "D52F557F-D0A0-43D3-85F1-F10B6EBFAEDF",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*",
                  "matchCriteriaId": "7E1E416B-920B-49A0-9523-382898C2979D",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*",
                  "matchCriteriaId": "D9DB4A14-2EF5-4B54-95D2-75E6CF9AA0A9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*",
                  "matchCriteriaId": "D3E503FB-6279-4D4A-91D8-E237ECF9D2B0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8E8C192B-8044-4BF9-9F1F-57371FC0E8FD",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "F1E78106-58E6-4D59-990F-75DA575BFAD9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally."
        },
        {
          "lang": "es",
          "value": "Se descubri\u00f3 un problema en Python versiones hasta 2.7.16, versiones 3.x hasta 3.5.7, versiones 3.6.x hasta 3.6.9 y versiones 3.7.x hasta 3.7.4. El m\u00f3dulo de correo electr\u00f3nico analiza incorrectamente las direcciones de correo electr\u00f3nico que contienen m\u00faltiples caracteres @. Una aplicaci\u00f3n que usa el m\u00f3dulo de correo electr\u00f3nico e implementa alg\u00fan tipo de comprobaci\u00f3n sobre los encabezados From/To de un mensaje podr\u00eda ser enga\u00f1ada para aceptar una direcci\u00f3n de correo electr\u00f3nico que deber\u00eda ser denegada. Un ataque puede ser el mismo que en CVE-2019-11340; sin embargo, este CVE aplica a Python de manera m\u00e1s general."
        }
      ],
      "id": "CVE-2019-16056",
      "lastModified": "2024-11-21T04:29:57.830",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 5.0,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
              "version": "2.0"
            },
            "exploitabilityScore": 10.0,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2019-09-06T18:15:15.443",
      "references": [
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3725"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3948"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Issue Tracking",
            "Vendor Advisory"
          ],
          "url": "https://bugs.python.org/issue34155"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch"
          ],
          "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/4151-1/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/4151-2/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3725"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3948"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Issue Tracking",
            "Vendor Advisory"
          ],
          "url": "https://bugs.python.org/issue34155"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/4151-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/4151-2/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "NVD-CWE-noinfo"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "microsoft_vex": {
      "current_release_date": "2026-10-28T01:48:13.000Z",
      "cve": "CVE-2019-16056",
      "id": "msrc_CVE-2019-16056",
      "initial_release_date": "2026-10-21T01:07:18.000Z",
      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2019-16056.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "n/a",
                "vendor": "n/a",
                "versions": [
                  {
                    "status": "affected",
                    "version": "n/a"
                  }
                ]
              }
            ],
            "source": "cve@mitre.org"
          },
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6487B78A-9CFC-43DF-8420-C41E14DE0C93",
                    "versionEndIncluding": "2.7.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "153873D5-6469-468B-8E51-8BD69369603D",
                    "versionEndIncluding": "3.0.1",
                    "versionStartIncluding": "3.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2F1E5343-DF7E-4CEF-B7E6-1F96E88060FB",
                    "versionEndIncluding": "3.1.5",
                    "versionStartIncluding": "3.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5B874AB9-7840-4995-8634-85BED9638486",
                    "versionEndIncluding": "3.2.6",
                    "versionStartIncluding": "3.2.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B10A1DCA-2F1C-46C4-99DE-B3AF0800CA85",
                    "versionEndIncluding": "3.3.7",
                    "versionStartIncluding": "3.3.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2F8A9AE3-4B12-4066-A633-F6AEFAB7AB26",
                    "versionEndIncluding": "3.4.10",
                    "versionStartIncluding": "3.4.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "81044065-FF98-4F09-AC46-AE09D64A04B5",
                    "versionEndIncluding": "3.5.7",
                    "versionStartIncluding": "3.5.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "11B81F2B-AEE3-4C49-8A1E-A29CAB31AA95",
                    "versionEndIncluding": "3.6.9",
                    "versionStartIncluding": "3.6.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E761E073-D3A0-45A7-92B1-DE26860C193E",
                    "versionEndIncluding": "3.7.4",
                    "versionStartIncluding": "3.7.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D100F7CE-FC64-4CC6-852A-6136D72DA419",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                    "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                    "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
                    "matchCriteriaId": "CB66DB75-2B16-4EBF-9B93-CE49D8086E41",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                    "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                    "matchCriteriaId": "7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CD783B0C-9246-47D9-A937-6144FE8BFF0F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9D7EE4B6-A6EC-4B9B-91DF-79615796673F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:oracle:communications_operations_monitor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9264AF8A-3819-40E5-BBCB-3B6C95A0D828",
                    "versionEndIncluding": "4.3",
                    "versionStartIncluding": "4.1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D52F557F-D0A0-43D3-85F1-F10B6EBFAEDF",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7E1E416B-920B-49A0-9523-382898C2979D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D9DB4A14-2EF5-4B54-95D2-75E6CF9AA0A9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D3E503FB-6279-4D4A-91D8-E237ECF9D2B0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8E8C192B-8044-4BF9-9F1F-57371FC0E8FD",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F1E78106-58E6-4D59-990F-75DA575BFAD9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally."
          },
          {
            "lang": "es",
            "value": "Se descubri\u00f3 un problema en Python versiones hasta 2.7.16, versiones 3.x hasta 3.5.7, versiones 3.6.x hasta 3.6.9 y versiones 3.7.x hasta 3.7.4. El m\u00f3dulo de correo electr\u00f3nico analiza incorrectamente las direcciones de correo electr\u00f3nico que contienen m\u00faltiples caracteres @. Una aplicaci\u00f3n que usa el m\u00f3dulo de correo electr\u00f3nico e implementa alg\u00fan tipo de comprobaci\u00f3n sobre los encabezados From/To de un mensaje podr\u00eda ser enga\u00f1ada para aceptar una direcci\u00f3n de correo electr\u00f3nico que deber\u00eda ser denegada. Un ataque puede ser el mismo que en CVE-2019-11340; sin embargo, este CVE aplica a Python de manera m\u00e1s general."
          }
        ],
        "id": "CVE-2019-16056",
        "lastModified": "2026-10-14T07:16:47.733",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.0,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2019-16056",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T18:12:26.291451Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2019-09-06T18:15:15.443",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3725"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3948"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Issue Tracking",
              "Vendor Advisory"
            ],
            "url": "https://bugs.python.org/issue34155"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/4151-1/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/4151-2/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3725"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3948"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Vendor Advisory"
            ],
            "url": "https://bugs.python.org/issue34155"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/4151-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/4151-2/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-05T07:36:28+00:00",
      "cve": "CVE-2019-16056",
      "id": "CVE-2019-16056",
      "initial_release_date": "2019-01-01T00:00:00+00:00",
      "product_status:fixed": "873",
      "product_status:known_affected": "8",
      "product_status:known_not_affected": "34",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "python: email.utils.parseaddr wrongly parses email addresses",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-16056.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-08T00:00:15Z",
      "cve": "CVE-2019-16056",
      "id": "CVE-2019-16056",
      "initial_release_date": "2023-02-15T04:08:18Z",
      "product_status:known_affected": "432",
      "product_status:recommended": "1543",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-16056",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-16056.json",
      "version": "44"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-05T01:03:32.645Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "name": "FEDORA-2019-4954d8773c",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
              },
              {
                "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1925-1] python2.7 security update",
                "tags": [
                  "mailing-list",
                  "x_refsource_MLIST",
                  "x_transferred"
                ],
                "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
              },
              {
                "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1924-1] python3.4 security update",
                "tags": [
                  "mailing-list",
                  "x_refsource_MLIST",
                  "x_transferred"
                ],
                "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
              },
              {
                "name": "FEDORA-2019-50772cf122",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
              },
              {
                "name": "FEDORA-2019-5dc275c9f2",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
              },
              {
                "name": "FEDORA-2019-2b1f72899a",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
              },
              {
                "name": "USN-4151-1",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_UBUNTU",
                  "x_transferred"
                ],
                "url": "https://usn.ubuntu.com/4151-1/"
              },
              {
                "name": "USN-4151-2",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_UBUNTU",
                  "x_transferred"
                ],
                "url": "https://usn.ubuntu.com/4151-2/"
              },
              {
                "name": "openSUSE-SU-2019:2389",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_SUSE",
                  "x_transferred"
                ],
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
              },
              {
                "name": "openSUSE-SU-2019:2393",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_SUSE",
                  "x_transferred"
                ],
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
              },
              {
                "name": "FEDORA-2019-232f092db0",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
              },
              {
                "name": "FEDORA-2019-986622833f",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
              },
              {
                "name": "FEDORA-2019-aba3cca74a",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
              },
              {
                "name": "openSUSE-SU-2019:2438",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_SUSE",
                  "x_transferred"
                ],
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
              },
              {
                "name": "RHSA-2019:3725",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT",
                  "x_transferred"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2019:3725"
              },
              {
                "name": "openSUSE-SU-2019:2453",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_SUSE",
                  "x_transferred"
                ],
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
              },
              {
                "name": "FEDORA-2019-0d3fcae639",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
              },
              {
                "name": "FEDORA-2019-74ba24605e",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
              },
              {
                "name": "FEDORA-2019-b06ec6159b",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
              },
              {
                "name": "FEDORA-2019-758824a3ff",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
              },
              {
                "name": "FEDORA-2019-d202cda4f8",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
              },
              {
                "name": "FEDORA-2019-57462fa10d",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
              },
              {
                "name": "RHSA-2019:3948",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT",
                  "x_transferred"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2019:3948"
              },
              {
                "name": "FEDORA-2019-7ec5bb5d22",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
              },
              {
                "name": "FEDORA-2019-a268ba7b23",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
              },
              {
                "name": "openSUSE-SU-2020:0086",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_SUSE",
                  "x_transferred"
                ],
                "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://bugs.python.org/issue34155"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
              },
              {
                "tags": [
                  "x_refsource_CONFIRM",
                  "x_transferred"
                ],
                "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
              },
              {
                "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update",
                "tags": [
                  "mailing-list",
                  "x_refsource_MLIST",
                  "x_transferred"
                ],
                "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
              },
              {
                "name": "[bookkeeper-issues] 20200729 [GitHub] [bookkeeper] padma81 opened a new issue #2387: Security vulnerabilities in the apache/bookkeeper-4.9.2 image",
                "tags": [
                  "mailing-list",
                  "x_refsource_MLIST",
                  "x_transferred"
                ],
                "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
              },
              {
                "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update",
                "tags": [
                  "mailing-list",
                  "x_refsource_MLIST",
                  "x_transferred"
                ],
                "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "V3.1.5",
                    "status": "affected",
                    "version": "V3.1.0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-14T06:50:11.813Z",
              "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
              "shortName": "siemens-SADP"
            },
            "references": [
              {
                "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
              }
            ],
            "x_adpType": "supplier"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "NONE",
                  "baseScore": 5.3,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "LOW",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2019-16056",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-07T18:12:26.291451Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-20",
                    "description": "CWE-20 Improper Input Validation",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-07T18:13:07.567Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "n/a",
              "vendor": "n/a",
              "versions": [
                {
                  "status": "affected",
                  "version": "n/a"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "n/a",
                  "lang": "en",
                  "type": "text"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2020-08-22T16:06:09.000Z",
            "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
            "shortName": "mitre"
          },
          "references": [
            {
              "name": "FEDORA-2019-4954d8773c",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
            },
            {
              "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1925-1] python2.7 security update",
              "tags": [
                "mailing-list",
                "x_refsource_MLIST"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
            },
            {
              "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1924-1] python3.4 security update",
              "tags": [
                "mailing-list",
                "x_refsource_MLIST"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
            },
            {
              "name": "FEDORA-2019-50772cf122",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
            },
            {
              "name": "FEDORA-2019-5dc275c9f2",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
            },
            {
              "name": "FEDORA-2019-2b1f72899a",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
            },
            {
              "name": "USN-4151-1",
              "tags": [
                "vendor-advisory",
                "x_refsource_UBUNTU"
              ],
              "url": "https://usn.ubuntu.com/4151-1/"
            },
            {
              "name": "USN-4151-2",
              "tags": [
                "vendor-advisory",
                "x_refsource_UBUNTU"
              ],
              "url": "https://usn.ubuntu.com/4151-2/"
            },
            {
              "name": "openSUSE-SU-2019:2389",
              "tags": [
                "vendor-advisory",
                "x_refsource_SUSE"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
            },
            {
              "name": "openSUSE-SU-2019:2393",
              "tags": [
                "vendor-advisory",
                "x_refsource_SUSE"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
            },
            {
              "name": "FEDORA-2019-232f092db0",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
            },
            {
              "name": "FEDORA-2019-986622833f",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
            },
            {
              "name": "FEDORA-2019-aba3cca74a",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
            },
            {
              "name": "openSUSE-SU-2019:2438",
              "tags": [
                "vendor-advisory",
                "x_refsource_SUSE"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
            },
            {
              "name": "RHSA-2019:3725",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2019:3725"
            },
            {
              "name": "openSUSE-SU-2019:2453",
              "tags": [
                "vendor-advisory",
                "x_refsource_SUSE"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
            },
            {
              "name": "FEDORA-2019-0d3fcae639",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
            },
            {
              "name": "FEDORA-2019-74ba24605e",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
            },
            {
              "name": "FEDORA-2019-b06ec6159b",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
            },
            {
              "name": "FEDORA-2019-758824a3ff",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
            },
            {
              "name": "FEDORA-2019-d202cda4f8",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
            },
            {
              "name": "FEDORA-2019-57462fa10d",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
            },
            {
              "name": "RHSA-2019:3948",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2019:3948"
            },
            {
              "name": "FEDORA-2019-7ec5bb5d22",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
            },
            {
              "name": "FEDORA-2019-a268ba7b23",
              "tags": [
                "vendor-advisory",
                "x_refsource_FEDORA"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
            },
            {
              "name": "openSUSE-SU-2020:0086",
              "tags": [
                "vendor-advisory",
                "x_refsource_SUSE"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://bugs.python.org/issue34155"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
            },
            {
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
            },
            {
              "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update",
              "tags": [
                "mailing-list",
                "x_refsource_MLIST"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
            },
            {
              "name": "[bookkeeper-issues] 20200729 [GitHub] [bookkeeper] padma81 opened a new issue #2387: Security vulnerabilities in the apache/bookkeeper-4.9.2 image",
              "tags": [
                "mailing-list",
                "x_refsource_MLIST"
              ],
              "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"
            },
            {
              "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update",
              "tags": [
                "mailing-list",
                "x_refsource_MLIST"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
            }
          ],
          "x_legacyV4Record": {
            "CVE_data_meta": {
              "ASSIGNER": "cve@mitre.org",
              "ID": "CVE-2019-16056",
              "STATE": "PUBLIC"
            },
            "affects": {
              "vendor": {
                "vendor_data": [
                  {
                    "product": {
                      "product_data": [
                        {
                          "product_name": "n/a",
                          "version": {
                            "version_data": [
                              {
                                "version_value": "n/a"
                              }
                            ]
                          }
                        }
                      ]
                    },
                    "vendor_name": "n/a"
                  }
                ]
              }
            },
            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
              "description_data": [
                {
                  "lang": "eng",
                  "value": "An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally."
                }
              ]
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "n/a"
                    }
                  ]
                }
              ]
            },
            "references": {
              "reference_data": [
                {
                  "name": "FEDORA-2019-4954d8773c",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/"
                },
                {
                  "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1925-1] python2.7 security update",
                  "refsource": "MLIST",
                  "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00019.html"
                },
                {
                  "name": "[debian-lts-announce] 20190916 [SECURITY] [DLA 1924-1] python3.4 security update",
                  "refsource": "MLIST",
                  "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html"
                },
                {
                  "name": "FEDORA-2019-50772cf122",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/"
                },
                {
                  "name": "FEDORA-2019-5dc275c9f2",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/"
                },
                {
                  "name": "FEDORA-2019-2b1f72899a",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/"
                },
                {
                  "name": "USN-4151-1",
                  "refsource": "UBUNTU",
                  "url": "https://usn.ubuntu.com/4151-1/"
                },
                {
                  "name": "USN-4151-2",
                  "refsource": "UBUNTU",
                  "url": "https://usn.ubuntu.com/4151-2/"
                },
                {
                  "name": "openSUSE-SU-2019:2389",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"
                },
                {
                  "name": "openSUSE-SU-2019:2393",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"
                },
                {
                  "name": "FEDORA-2019-232f092db0",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/"
                },
                {
                  "name": "FEDORA-2019-986622833f",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/"
                },
                {
                  "name": "FEDORA-2019-aba3cca74a",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/"
                },
                {
                  "name": "openSUSE-SU-2019:2438",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html"
                },
                {
                  "name": "RHSA-2019:3725",
                  "refsource": "REDHAT",
                  "url": "https://access.redhat.com/errata/RHSA-2019:3725"
                },
                {
                  "name": "openSUSE-SU-2019:2453",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html"
                },
                {
                  "name": "FEDORA-2019-0d3fcae639",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/"
                },
                {
                  "name": "FEDORA-2019-74ba24605e",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/"
                },
                {
                  "name": "FEDORA-2019-b06ec6159b",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"
                },
                {
                  "name": "FEDORA-2019-758824a3ff",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/"
                },
                {
                  "name": "FEDORA-2019-d202cda4f8",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"
                },
                {
                  "name": "FEDORA-2019-57462fa10d",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"
                },
                {
                  "name": "RHSA-2019:3948",
                  "refsource": "REDHAT",
                  "url": "https://access.redhat.com/errata/RHSA-2019:3948"
                },
                {
                  "name": "FEDORA-2019-7ec5bb5d22",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/"
                },
                {
                  "name": "FEDORA-2019-a268ba7b23",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/"
                },
                {
                  "name": "openSUSE-SU-2020:0086",
                  "refsource": "SUSE",
                  "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
                },
                {
                  "name": "https://www.oracle.com/security-alerts/cpuapr2020.html",
                  "refsource": "MISC",
                  "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
                },
                {
                  "name": "https://www.oracle.com/security-alerts/cpujul2020.html",
                  "refsource": "MISC",
                  "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
                },
                {
                  "name": "https://bugs.python.org/issue34155",
                  "refsource": "MISC",
                  "url": "https://bugs.python.org/issue34155"
                },
                {
                  "name": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9",
                  "refsource": "MISC",
                  "url": "https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9"
                },
                {
                  "name": "https://security.netapp.com/advisory/ntap-20190926-0005/",
                  "refsource": "CONFIRM",
                  "url": "https://security.netapp.com/advisory/ntap-20190926-0005/"
                },
                {
                  "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update",
                  "refsource": "MLIST",
                  "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
                },
                {
                  "name": "[bookkeeper-issues] 20200729 [GitHub] [bookkeeper] padma81 opened a new issue #2387: Security vulnerabilities in the apache/bookkeeper-4.9.2 image",
                  "refsource": "MLIST",
                  "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E"
                },
                {
                  "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update",
                  "refsource": "MLIST",
                  "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2019-16056",
        "datePublished": "2019-09-06T17:24:35.000Z",
        "dateReserved": "2019-09-06T00:00:00.000Z",
        "dateUpdated": "2026-10-14T06:50:11.813Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.