| Name | CVE-2026-94283 |
| Description | An out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients. |
| 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 | 1149668 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libx11 (PTS) | bookworm, bookworm (security) | 2:1.8.4-2+deb12u2 | vulnerable |
| trixie | 2:1.8.12-1 | vulnerable |
| forky, sid | 2:1.8.13-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libx11 | source | (unstable) | (unfixed) | | | 1149668 |
Notes
[trixie] - libx11 <no-dsa> (Minor issue)
[bookworm] - libx11 <postponed> (Minor issue)
https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/310
Fixed by: https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/f263bbca24d04c766775e7af2e203ca41b4ece2e