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Security Advisory 2026-0014

Summary Integer overflow in AV1 LEB128 parser
Date 2026-04-07
Affected Versions GStreamer gst-plugins-base < 1.28.2, gst-plugins-bad < 1.28.2
IDs GStreamer-SA-2026-0014

Details

Integer overflow in the AV1 LEB128 parser in gst-plugins-base typefind functions and gst-plugins-bad AV1 video parsers when handling malformed AV1 bitstreams. The parser incorrectly handles signed 32-bit integer values and fails to properly validate LEB128 encoded values according to the AV1 specification.

Impact

It is possible for a malicious third party to trigger a crash in the application, resulting in denial of service, when processing malicious AV1 media files or streams.

Solution

The gst-plugins-base 1.28.2 and gst-plugins-bad 1.28.2 releases address the issue. People using older versions of GStreamer should apply the patch and recompile.

References

The GStreamer project

CVE Database Entries

  • No CVE number assigned or pending

GStreamer 1.28.2 release

Patches


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