{"schema":"threatline.record/2","record":{"id":"CVE-2026-104266","aliases":["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.","categories":["Libraries & packages"],"product":"tinytag","vendor":"tinytag","ecosystem":"pip","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-24cc-9352-h2pg","source_modified_at":"2026-10-15T20:16:48Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"tinytag"},"range":">= 2.0.0, < 2.3.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104266","source_modified_at":"2026-10-21T01:00:05.989Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"tinytag","vendor":"tinytag","versions":[{"version":">= 2.0.0, < 2.3.0","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-24cc-9352-h2pg","source_modified_at":"2026-10-15T20:30:05.136549303Z","fetched_at":"2026-10-23T18:45:31.882637Z","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"]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-24cc-9352-h2pg","source_modified_at":"2026-10-15T20:16:48Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"tinytag"},"version":"2.3.0"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-24cc-9352-h2pg","source_modified_at":"2026-10-15T20:30:05.136549303Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"tinytag","ecosystem":"PyPI","purl":"pkg:pypi/tinytag"},"version":"2.3.0"}],"cvss":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00252,"percentile":0.1577,"score_date":"2026-10-23"},"published_at":"2026-10-15T17:13:26.636Z","modified_at":"2026-10-21T01:00:05.989Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-24cc-9352-h2pg","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-15T20:16:48Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104266","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T01:00:05.989Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-24cc-9352-h2pg","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-15T20:30:05.136549303Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104266","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104266","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/tinytag/tinytag/pull/326","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/tinytag/tinytag/releases/tag/2.3.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-24cc-9352-h2pg","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-21T00:59:51.994856Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-21T01:00:05.989Z","content_hash":"c1f8549cd3535583753ea6f92919c76a1397ef267d5aef09d5fff1731f8c3f17"}}