| Name | CVE-2026-43864 |
| Description | mutt before 2.3.2 has a show_sig_summary NULL pointer dereference. |
| Source | CVE (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 Package | Release | Version | Status |
|---|
| mutt (PTS) | bullseye (security), bullseye | 2.0.5-4.1+deb11u3 | vulnerable |
| bookworm | 2.2.12-0.1~deb12u1 | vulnerable |
| bookworm (security) | 2.2.9-1+deb12u1 | vulnerable |
| forky, sid, trixie | 2.2.13-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mutt | source | (unstable) | (unfixed) | | | |
Notes
[trixie] - mutt <no-dsa> (Minor issue)
[bookworm] - mutt <no-dsa> (Minor issue)
Fixed by: https://gitlab.com/muttmua/mutt/-/commit/ebfa2969042d89303d15334193fcc32866c8a8df (mutt-2-3-2-rel)