{"id":"JLSEC-2025-146","summary":"A flaw was found in FFmpeg's HLS demuxer","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":"2026-07-18T00:00:20.270989071Z","published":"2025-10-19T19:08:53.760Z","upstream":["CVE-2023-6601"],"database_specific":{"license":"CC-BY-4.0","sources":[{"imported":"2026-07-17T20:37:58.981Z","modified":"2026-06-17T06:51:04.107Z","published":"2025-01-06T17:15:14.217Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-6601","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6601","database_specific":{"status":"Modified"},"id":"CVE-2023-6601"}]},"references":[{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2253172"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00004.html"}],"affected":[{"package":{"name":"FFMPEG_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"6.1.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-146.json"}},{"package":{"name":"FFplay_jll","ecosystem":"Julia","purl":"pkg:julia/FFplay_jll?uuid=c4dce911-e170-5107-8314-c7bdc6785395"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.1.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-146.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N"}]}