CVE-2026-107677
Description
FFmpeg through 9.0.2 contains a denial of service vulnerability in the DASH demuxer that allows attackers to trigger an infinite loop by supplying an empty SegmentTemplate media URL. Attackers can craft an .mpd manifest declaring SegmentTemplate media="" so get_current_fragment() calls av_strireplace() with an empty search string, consuming CPU indefinitely.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/ed27bfcbbbc0872c0195eaf4dd2c0c93b9f1778e
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24592
- https://ffmpeg.org/
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/dashdec.c#L1726
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/avstring.c#L230-L238
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-dash-demuxer-infinite-loop-via-empty-segmenttemplate-media
CWEs
CWE-835
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.