| Name | CVE-2026-94055 |
| Description | Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free. |
| 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) |
| Debian Bugs | 1148506 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| exim4 (PTS) | bookworm, bookworm (security) | 4.96-15+deb12u10 | fixed |
| trixie | 4.98.2-1+deb13u4 | fixed |
| trixie (security) | 4.98.2-1+deb13u5 | fixed |
| forky | 4.100.1-1 | fixed |
| sid | 4.100.1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| exim4 | source | bookworm | (not affected) | | | |
| exim4 | source | trixie | (not affected) | | | |
| exim4 | source | (unstable) | 4.100.1-1 | | | 1148506 |
Notes
[trixie] - exim4 <not-affected> (Vulnerable code not present)
[bookworm] - exim4 <not-affected> (Vulnerable code not present)
https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html
Fixed by: https://code.exim.org/exim/exim/commit/1c0c17d134cbf10dce3d883e10455b3aefd491e4