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CVE-2026-57229 (GCVE-0-2026-57229)

Vulnerability from cvelistv5 – Published: 2026-09-18 20:18 – Updated: 2026-09-18 20:18
VLAI
Title
Suricata smtp/mime: incomplete state reset allows detection bypass
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part's encoding or filename state can leak into the inner message, allowing crafted mail to evade detections based on file.data, file.name, or extracted URLs when SMTP MIME decoding is enabled. This issue is fixed in version 8.0.6.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-665 - Improper Initialization
Assigner
References
Impacted products
Vendor Product Version CPE status
OISF suricata Affected: >= 8.0.0, < 8.0.6
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "suricata",
          "vendor": "OISF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part\u0027s encoding or filename state can leak into the inner message, allowing crafted mail to evade detections based on file.data, file.name, or extracted URLs when SMTP MIME decoding is enabled. This issue is fixed in version 8.0.6."
        }
      ],
      "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-665",
              "description": "CWE-665: Improper Initialization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T20:18:38.625Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/OISF/suricata/security/advisories/GHSA-ph5p-pm8r-m355",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/OISF/suricata/security/advisories/GHSA-ph5p-pm8r-m355"
        },
        {
          "name": "https://github.com/OISF/suricata/commit/4985eb9daea2f765b6ef59a58fa02e5c71c0a77c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OISF/suricata/commit/4985eb9daea2f765b6ef59a58fa02e5c71c0a77c"
        },
        {
          "name": "https://github.com/OISF/suricata/commit/c0215c7e175b0000ef8450928dd1f3453c48379b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OISF/suricata/commit/c0215c7e175b0000ef8450928dd1f3453c48379b"
        },
        {
          "name": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
        },
        {
          "name": "https://redmine.openinfosecfoundation.org/issues/8649",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://redmine.openinfosecfoundation.org/issues/8649"
        }
      ],
      "source": {
        "advisory": "GHSA-ph5p-pm8r-m355",
        "discovery": "UNKNOWN"
      },
      "title": "Suricata smtp/mime: incomplete state reset allows detection bypass"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-57229",
    "datePublished": "2026-09-18T20:18:38.625Z",
    "dateReserved": "2026-06-24T02:21:33.811Z",
    "dateUpdated": "2026-09-18T20:18:38.625Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "suricata",
                "vendor": "OISF",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 8.0.0, \u003c 8.0.6"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part\u0027s encoding or filename state can leak into the inner message, allowing crafted mail to evade detections based on file.data, file.name, or extracted URLs when SMTP MIME decoding is enabled. This issue is fixed in version 8.0.6."
          }
        ],
        "id": "CVE-2026-57229",
        "lastModified": "2026-09-18T21:17:01.537",
        "metrics": {
          "cvssMetricV31": [
            {
              "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": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-09-18T21:17:01.537",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/commit/4985eb9daea2f765b6ef59a58fa02e5c71c0a77c"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/commit/c0215c7e175b0000ef8450928dd1f3453c48379b"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/security/advisories/GHSA-ph5p-pm8r-m355"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://redmine.openinfosecfoundation.org/issues/8649"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-665"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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