CVE-2026-107677
Publication date 13 October 2026
Last updated 13 October 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| ffmpeg | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| libav | 26.04 LTS resolute | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
CVSS version:
Base score
5.7 · Medium
Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Base score
4.7 · Medium
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-107677
- 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