{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-120210","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-31T11:44:49.905Z","datePublished":"2026-10-31T17:25:56.847Z","dateUpdated":"2026-10-31T17:25:56.847Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-31T17:25:56.847Z"},"datePublic":"2026-10-21T00:00:00.000Z","title":"FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP Path","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","cweId":"CWE-22","type":"CWE"}]}],"affected":[{"vendor":"FFmpeg","product":"FFmpeg","defaultStatus":"unaffected","versions":[{"version":"5.0","lessThanOrEqual":"9.0.2","status":"affected","versionType":"custom"}],"packageURL":"pkg:github/ffmpeg/ffmpeg","repo":"https://code.ffmpeg.org/FFmpeg/FFmpeg"}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndIncluding":"9.0.2"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25341","tags":["issue-tracking"]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/imfdec.c#L273","tags":["technical-description"]},{"url":"https://github.com/FFmpeg/FFmpeg","tags":["product"]},{"name":"VulnCheck Advisory: FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP Path","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ffmpeg-5.0-through-9.0.2-path-traversal-via-imf-demuxer-assetmap-path"}],"credits":[{"lang":"en","value":"BapToutatis","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}