{"id":"CVE-2026-32889","aliases":["GHSA-f4rq-2259-hv29","PYSEC-2026-3386"],"url":"https://o3.security/vulnerability/CVE-2026-32889","summary":"tinytag: Denial of Service via non-terminating SYLT frame parsing loop","details":"tinytag is a Python library for reading audio file metadata. Version 2.2.0 allows an attacker who can supply MP3 files for parsing to trigger a non-terminating loop while the library parses an ID3v2 SYLT (synchronized lyrics) frame. In server-side deployments that automatically parse attacker-supplied files, a single 498-byte MP3 can cause the parsing operation to stop making progress and remain busy until the worker or process is terminated. The root cause is that _parse_synced_lyrics assumes _find_string_end_pos always returns a position greater than the current offset. That assumption is false when no string terminator is present in the remaining frame content. This issue has been fixed in version 2.2.1.","published":"2026-03-20T02:23:25.079Z","modified":"2026-07-15T01:49:13.765176003Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"tinytag","fixedVersion":"2.2.1"}],"fix":{"url":"https://github.com/tinytag/tinytag/commit/44e496310f7ced8077e9087e3774acbaa324b18a","label":"tinytag/tinytag@44e4963"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32889.json"},{"type":"ADVISORY","url":"https://github.com/tinytag/tinytag/security/advisories/GHSA-f4rq-2259-hv29"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32889"},{"type":"FIX","url":"https://github.com/tinytag/tinytag/commit/44e496310f7ced8077e9087e3774acbaa324b18a"},{"type":"FIX","url":"https://github.com/tinytag/tinytag/commit/4d649b9c314ada8ff8a74e0469e9aadb3acb252a"},{"type":"FIX","url":"https://github.com/tinytag/tinytag/commit/5cd321521ff097e41724b601d7e3d7adc7e53402"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:13.765176003Z"}}