| Name | CVE-2026-94054 |
| Description | Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write. |
| 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) |
| References | DSA-6522-1 |
| 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 | vulnerable |
| trixie | 4.98.2-1+deb13u4 | vulnerable |
| 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 | trixie | 4.98.2-1+deb13u5 | | DSA-6522-1 | |
| exim4 | source | (unstable) | 4.100.1-1 | | | 1148506 |
Notes
https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html
Fixed by: https://code.exim.org/exim/exim/commit/8ead2b003af9225f712e85d246cd5544ef04ef91