{"id":"CVE-2023-6601","summary":"Ffmpeg: hls unsafe file extension bypass in ffmpeg","details":"A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.","modified":"2026-08-17T03:54:58.929424036Z","published":"2025-01-06T16:41:14.621Z","related":["SUSE-SU-2026:0198-1","SUSE-SU-2026:0229-1","SUSE-SU-2026:2444-1","SUSE-SU-2026:2445-1","openSUSE-SU-2026:10027-1","openSUSE-SU-2026:10028-1","openSUSE-SU-2026:20710-1","openSUSE-SU-2026:21211-1"],"database_specific":{"cna_assigner":"fedora","cwe_ids":["CWE-99"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6601.json"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00004.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6601.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6601"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2253172"},{"type":"PACKAGE","url":"https://github.com/FFmpeg/FFmpeg"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.ffmpeg.org/ffmpeg.git","events":[{"introduced":"2b8b2ba19fe0ca6594cb09439b9ead2c328a79d8"},{"last_affected":"ea3d24bbe3c58b171e55fe2151fc7ffaca3ab3d2"}],"database_specific":{"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.0"},{"last_affected":"6.0"}],"source":"CPE_RANGE"}},{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"2b8b2ba19fe0ca6594cb09439b9ead2c328a79d8"},{"fixed":"ea3d24bbe3c58b171e55fe2151fc7ffaca3ab3d2"}],"database_specific":{"extracted_events":[{"introduced":"2.0"},{"fixed":"6.*"},{"last_affected":"6.0"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*"}}],"versions":["n6.0","n5.2-dev","n5.1-dev","n4.5-dev","n4.4-dev","n4.3-dev","n4.2-dev","n4.1-dev","n3.5-dev","n3.4-dev","n3.3-dev","n3.2-dev","n3.1-dev","n2.9-dev","n2.8-dev","n2.7-dev","n2.6-dev","n2.5-dev","n2.4-dev","n2.3-dev","n2.2-dev","n2.0","n2.1-dev"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6601.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N"}]}