{"id":"GHSA-24cc-9352-h2pg","summary":"tinytag: Infinite loop when parsing certain M4A files containing invalid atoms","details":"### Impact\nAn M4A file containing a sub-atom with a size of zero in the `----` atom makes the parser enter an infinite loop, resulting in a denial-of-service for programs reading such files with tinytag.\n\n### Patches\nThe issue has been fixed in tinytag 2.3.0, by reusing the primary atom parsing code path that contains appropriate size checks.\n\n### Workarounds\nNo workarounds exist. Users must upgrade to tinytag 2.3.0.","aliases":["CVE-2026-104266"],"modified":"2026-10-15T20:30:05.136549303Z","published":"2026-10-15T20:16:47Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-10-15T20:16:47Z","nvd_published_at":"2026-10-15T18:17:22Z","cwe_ids":["CWE-835"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104266"},{"type":"WEB","url":"https://github.com/tinytag/tinytag/pull/326"},{"type":"WEB","url":"https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e"},{"type":"PACKAGE","url":"https://github.com/tinytag/tinytag"},{"type":"WEB","url":"https://github.com/tinytag/tinytag/releases/tag/2.3.0"}],"affected":[{"package":{"name":"tinytag","ecosystem":"PyPI","purl":"pkg:pypi/tinytag"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.3.0"}]}],"versions":["2.0.0","2.1.0","2.1.1","2.1.2","2.2.0","2.2.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-24cc-9352-h2pg/GHSA-24cc-9352-h2pg.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}