{"id":"CVE-2026-120210","title":"FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP Path","summary":"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 a…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"FFmpeg","product":"FFmpeg","affected":["FFmpeg >= 5.0 <= 9.0.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T15:34:30.703410Z"},"published":"2026-10-31","updated":"2026-11-05","sourceUpdated":"2026-11-05T15:34:41.525Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120210","references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25341"},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/imfdec.c#L273"},{"url":"https://github.com/FFmpeg/FFmpeg"},{"url":"https://www.vulncheck.com/advisories/ffmpeg-5.0-through-9.0.2-path-traversal-via-imf-demuxer-assetmap-path","label":"VulnCheck Advisory: FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP Path"}],"tags":["cve.org"],"epss":0.00276,"epssPercentile":0.20135,"ingestedAt":"2026-11-05T21:36:00.908Z","slug":"CVE-2026-120210","body":"## Overview\n\nFFmpeg 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.\n\n## Affected\n\n- `FFmpeg >= 5.0 <= 9.0.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}