Bug 2570554 (CVE-2026-125205) - CVE-2026-125205 ffmpeg: ffmpeg: Denial of Service via unbounded memory allocation in av1_frame_merge
Summary: CVE-2026-125205 ffmpeg: ffmpeg: Denial of Service via unbounded memory alloca...
Keywords:
Status: NEW
Alias: CVE-2026-125205
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 20:06 UTC by OSIDB Bzimport
Modified: 2026-11-10 23:02 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-11-10 20:06:38 UTC 
FFmpeg through 9.0.2 contains an unbounded memory allocation vulnerability in the av1_frame_merge bitstream filter that allows attackers to exhaust memory by never sending a temporal delimiter OBU. Attackers can supply a crafted .obu file opened by the AV1 OBU or Annex B demuxers, forcing unlimited OBU buffering per temporal unit and causing denial of service.
Note You need to log in before you can comment on or make changes to this bug.