CVE-2026-43862

NameCVE-2026-43862
DescriptionIn mutt before 2.3.2, the imap_auth_gss security level is mishandled.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mutt (PTS)bullseye (security), bullseye2.0.5-4.1+deb11u3vulnerable
bookworm2.2.12-0.1~deb12u1vulnerable
bookworm (security)2.2.9-1+deb12u1vulnerable
forky, sid, trixie2.2.13-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
muttsource(unstable)(unfixed)

Notes

[trixie] - mutt <no-dsa> (Minor issue)
[bookworm] - mutt <no-dsa> (Minor issue)
Fixed by: https://gitlab.com/muttmua/mutt/-/commit/f547a849cdacb512800a5f477c27de217e1c8151 (mutt-2-3-2-rel)

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