CVE-2026-119843
Gst-plugins-good: assertion failures in FLV demuxer when parsing malformed enhanced audio/video tags
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in GStreamer's gst-plugins-good package. The FLV media demuxer does not properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. A remote attacker could exploit this vulnerability by providing a specially crafted FLV media file that, when opened or streamed by a GStreamer-based application, triggers an assertion failure or a process crash, leading to denial of service.
| CWE | CWE-617 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Nov 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected GStreamer project / gst-plugins-good
0 < 1.28.2
References
access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-119843 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2564182 gitlab.freedesktop.org: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11244.patch gstreamer.freedesktop.org: https://gstreamer.freedesktop.org/security/sa-2026-0020.html