CVE-2026-100229

NameCVE-2026-100229
DescriptionA flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gst-plugins-bad1.0 (PTS)bookworm1.22.0-4+deb12u7vulnerable
bookworm (security)1.22.0-4+deb12u8vulnerable
trixie (security), trixie1.26.2-3+deb13u3vulnerable
forky, sid1.28.8-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gst-plugins-bad1.0source(unstable)(unfixed)

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2541471

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