CVE catalog

CVE-2026-43862

In mutt before 2.3.2, the imap_auth_gss security level…

[CVE catalog]

In mutt before 2.3.2, the imap_auth_gss security level is mishandled.

Severity
Medium · CVSS 4.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.16% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "mutt",
      "status": "fixed",
      "release": "sid",
      "version": "2.4.1-1.1"
    },
    {
      "name": "mutt",
      "status": "fixed",
      "release": "forky",
      "version": "2.4.1-1"
    },
    {
      "name": "mutt",
      "status": "fixed",
      "release": "trixie",
      "version": "2.2.13-1+deb13u1"
    },
    {
      "name": "mutt",
      "status": "fixed",
      "release": "trixie-security",
      "version": "2.2.13-1+deb13u2"
    },
    {
      "name": "mutt",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "2.2.12-0.1~deb12u1"
    },
    {
      "name": "mutt",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "2.2.9-1+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1135699,
      "name": "mutt",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "2.3.2-1"
    },
    {
      "bug": 1135699,
      "name": "mutt",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "2.3.2-1"
    },
    {
      "bug": 1135699,
      "name": "mutt",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "2.2.13-1+deb13u1"
    },
    {
      "bug": 1135699,
      "name": "mutt",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "mutt",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    }
  ]
}

[Debian bug #1135699]

Publisher notes

[bookworm] mutt: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [mutt]Unknown
    Details (4)

    • 2.2.12-0.1~deb12u1 · amd64 · bookworm

      Affected

      nvd · mutt · debian · bookworm; nvd · mutt · debian · 12

    • 2.2.12-0.1~deb12u1 · arm64 · bookworm

      Affected

      nvd · mutt · debian · bookworm; nvd · mutt · debian · 12

    • 2.2.9-1+deb12u1 · amd64 · bookworm-security

      Affected

      nvd · mutt · debian · bookworm; nvd · mutt · debian · 12

    • 2.2.9-1+deb12u1 · arm64 · bookworm-security

      Affected

      nvd · mutt · debian · bookworm; nvd · mutt · debian · 12

[Debian 13 (Trixie)]

  • [mutt]Unknown
    Details (3)

    • 2.2.13-1+deb13u1 · amd64 · trixie

      Fixed · Fixed: 2.2.13-1+deb13u1

      nvd · mutt · debian · 13

    • 2.2.13-1+deb13u1 · arm64 · trixie

      Fixed · Fixed: 2.2.13-1+deb13u1

      nvd · mutt · debian · 13

    • 2.2.13-1+deb13u2 · amd64 · trixie-security

      Fixed · Fixed: 2.2.13-1+deb13u1

      nvd · mutt · debian · 13

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]