{"cve":"CVE-2026-120210","nvd":{"published":"2026-10-31T18:17:09.427","modified":"2026-10-31T18:17:09.427","status":"Received","description":"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.","cvss_v4":{"vector":"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","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-22"],"references":["https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25341","https://github.com/FFmpeg/FFmpeg","https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/imfdec.c#L273","https://www.vulncheck.com/advisories/ffmpeg-5.0-through-9.0.2-path-traversal-via-imf-demuxer-assetmap-path"],"products":[],"source":"nvd","synced_at":"2026-10-31T18:42:36.383037026+00:00"},"epss":null,"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}