FKIE_CVE-2026-4802

Vulnerability from fkie_nvd - Published: 2026-05-11 14:16 - Updated: 2026-06-17 10:57
Severity
8.0 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Summary
A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21390
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21392
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21394
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21395
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21468
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21515
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21516
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21647
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21676
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:21700
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-4802
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2451155
secalert@redhat.comhttps://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/05/20/19
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:356.2-1.el10_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux_eus:10.0"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:334.2-1.el10_0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:310.8-1.el8_10",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.6::baseos",
            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:264.3-1.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.6::baseos",
            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:264.3-1.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.6::baseos",
            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:264.3-1.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_e4s:8.8::baseos",
            "cpe:/o:redhat:rhel_tus:8.8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:286.2-1.el8_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_e4s:8.8::baseos",
            "cpe:/o:redhat:rhel_tus:8.8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:286.2-1.el8_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream",
            "cpe:/o:redhat:enterprise_linux:9::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:356.2-1.el9_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream",
            "cpe:/o:redhat:enterprise_linux:9::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:356.2-1.el9_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.0::appstream",
            "cpe:/o:redhat:rhel_e4s:9.0::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:264.3-1.el9_0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.2::appstream",
            "cpe:/o:redhat:rhel_e4s:9.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:286.3-1.el9_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.4::appstream",
            "cpe:/o:redhat:rhel_eus:9.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:311.3-1.el9_4",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.6::appstream",
            "cpe:/o:redhat:rhel_eus:9.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:334.3-1.el9_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "cockpit",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise."
    }
  ],
  "id": "CVE-2026-4802",
  "lastModified": "2026-06-17T10:57:15.440",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 5.9,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-4802",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-11T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-11T14:16:31.550",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21390"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21392"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21394"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21395"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21468"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21515"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21516"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21647"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21676"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:21700"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-4802"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451155"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/20/19"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.