CVE-2026-93544

NameCVE-2026-93544
DescriptionAn out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing in libXi before 1.8.4 can be used by a malicious X server to crash an attached X client.
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)
Debian Bugs1148965

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxi (PTS)bookworm2:1.8-1vulnerable
trixie2:1.8.2-1vulnerable
forky, sid2:1.8.3-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxisource(unstable)(unfixed)1148965

Notes

[trixie] - libxi <no-dsa> (Minor issue)
[bookworm] - libxi <postponed> (Minor issue)
https://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23
Fixed by: https://gitlab.freedesktop.org/xorg/lib/libxi/-/commit/e2ec4a1c8403c99f6c08621920b0efb0e0d6d533

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