CVE-2026-119728

Name	CVE-2026-119728
Description	A flaw was found in the H.264 video parser in gst-plugins-bad. When processing a specially crafted H.264 video file with malformed Multiview (MVC) Sequence Parameter Set data, the parser can dereference a NULL pointer during the cleanup of partially allocated internal structures after a parse failure. This can cause the application using GStreamer to crash, resulting in a denial of service.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gst-plugins-bad1.0 (PTS)	bookworm	1.22.0-4+deb12u7	vulnerable
	bookworm (security)	1.22.0-4+deb12u8	vulnerable
	trixie (security), trixie	1.26.2-3+deb13u3	vulnerable
	forky, sid	1.28.8-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gst-plugins-bad1.0	source	(unstable)	1.28.2-1

Notes

https://gstreamer.freedesktop.org/security/sa-2026-0013.html
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11240
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11251 (1.28.1)