CVE-2026-119843 PUBLISHED

Gst-plugins-good: assertion failures in FLV demuxer when parsing malformed enhanced audio/video tags

Assigner: redhat
Reserved: 30.10.2026 Published: 03.11.2026 Updated: 03.11.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Product Status

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Enterprise Linux 7
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Versions Default: unaffected
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Versions Default: unaffected
Vendor GStreamer project
Product gst-plugins-good
Versions
  • affected from 0 to 1.28.2 (excl.)
  • Version 1.28.2 is unaffected

Workarounds

No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.

References

Problem Types

  • Reachable Assertion CWE