ubuntu-cve-2026-43860
Vulnerability from osv_ubuntu
Published
2026-05-04 07:16
Modified
2026-05-20 15:28
Summary
Details

mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.

Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "1.5.24-1ubuntu0.6+esm3"
          },
          {
            "binary_name": "mutt-patched",
            "binary_version": "1.5.24-1ubuntu0.6+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@1.5.24-1ubuntu0.6+esm3?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.23-3.1ubuntu1",
        "1.5.23-3.1ubuntu2",
        "1.5.24-1",
        "1.5.24-1build1",
        "1.5.24-1ubuntu0.1",
        "1.5.24-1ubuntu0.2",
        "1.5.24-1ubuntu0.3",
        "1.5.24-1ubuntu0.4",
        "1.5.24-1ubuntu0.5",
        "1.5.24-1ubuntu0.6",
        "1.5.24-1ubuntu0.6+esm2",
        "1.5.24-1ubuntu0.6+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "1.9.4-3ubuntu0.6+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@1.9.4-3ubuntu0.6+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.3+neomutt20170609-2build1",
        "1.9.1-2",
        "1.9.1-3",
        "1.9.1-4",
        "1.9.1-5",
        "1.9.2-1",
        "1.9.3-1",
        "1.9.4-2",
        "1.9.4-3",
        "1.9.4-3ubuntu0.1",
        "1.9.4-3ubuntu0.2",
        "1.9.4-3ubuntu0.3",
        "1.9.4-3ubuntu0.4",
        "1.9.4-3ubuntu0.5",
        "1.9.4-3ubuntu0.6",
        "1.9.4-3ubuntu0.6+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "1.13.2-1ubuntu0.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@1.13.2-1ubuntu0.6?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.1-2.1",
        "1.12.2-1",
        "1.12.2-2",
        "1.13.0-1",
        "1.13.2-1",
        "1.13.2-1ubuntu0.1",
        "1.13.2-1ubuntu0.2",
        "1.13.2-1ubuntu0.3",
        "1.13.2-1ubuntu0.4",
        "1.13.2-1ubuntu0.5",
        "1.13.2-1ubuntu0.6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "2.1.4-1ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@2.1.4-1ubuntu1.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.5-4.1build1",
        "2.1.3-1",
        "2.1.4-1",
        "2.1.4-1build1",
        "2.1.4-1ubuntu1.1",
        "2.1.4-1ubuntu1.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "2.2.12-0.1build4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@2.2.12-0.1build4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.9-1",
        "2.2.9-1ubuntu0.23.10.1",
        "2.2.12-0.1",
        "2.2.12-0.1build2",
        "2.2.12-0.1build3",
        "2.2.12-0.1build4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "2.2.13-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@2.2.13-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.13-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "2.2.13-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@2.2.13-1build2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.13-1",
        "2.2.13-1build1",
        "2.2.13-1build2"
      ]
    }
  ],
  "aliases": [],
  "details": "mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.",
  "id": "UBUNTU-CVE-2026-43860",
  "modified": "2026-05-20T15:28:57Z",
  "published": "2026-05-04T07:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43860"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43860"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-43860"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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