CVE-2026-120210
FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP Path
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
FFmpeg 5.0 through 9.0.2 contains a path traversal vulnerability in the IMF demuxer that allows attackers to open files outside the package via unvalidated ASSETMAP Path elements. Attackers can supply a crafted IMF package with '..' or absolute paths to demux local MXF files, probe file existence and size, or trigger server-side requests.
| CWE | CWE-22 |
| Vendor | ffmpeg |
| Product | ffmpeg |
| Published | Oct 31, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
FFmpeg / FFmpeg
5.0 ≤ 9.0.2
References
code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25341 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/imfdec.c#L273 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-5.0-through-9.0.2-path-traversal-via-imf-demuxer-assetmap-path
Credits
BapToutatis