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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://access.redhat.com/security/cve/CVE-2026-119728
secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2564125
secalert@redhat.com
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11240
secalert@redhat.com
https://gstreamer.freedesktop.org/security/sa-2026-0013.html
secalert@redhat.com