Live › vulnerability › CVE-2026-119843
The FLV demuxer in GStreamer's gst-plugins-good does not validate buffer sizes when parsing enhanced audio and video tags in malformed or truncated FLV files. A remote attacker can supply a crafted FLV file that causes an assertion failure or process crash, denying service to the application playing it.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-03 10:20 UTC. All times on this page are UTC.
Applications built on GStreamer that open or stream FLV media, such as media players or services that process uploaded video, are exposed to a crash on a crafted file. unknown whether default configurations of common distributions include the affected demuxer path.
No product ranges from the sources yet.
Unknown from the sources.
No fix yet, per the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
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