CVE-2026-88807

NameCVE-2026-88807
DescriptionA heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.
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 Bugs1148735

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxrender (PTS)bookworm1:0.9.10-1.1vulnerable
forky, sid, trixie1:0.9.12-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxrendersource(unstable)(unfixed)1148735

Notes

[trixie] - libxrender <no-dsa> (Minor issue)
https://gitlab.freedesktop.org/xorg/lib/libxrender/-/merge_requests/19

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