{"id":"CVE-2026-104266","title":"tinytag is a Python library for reading audio file metadata","summary":"tinytag is a Python library for reading audio file metadata. From 2.0.0 until 2.3.0, an M4A file containing a sub-atom with a size of zero inside a ---- atom can cause the metadata parser to stop advancing through the input. The custom-f…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-835"],"vendor":"tinytag","product":"tinytag","affected":["tinytag >= 2.0.0, < 2.3.0"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T18:17:22.983","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104266","references":[{"url":"https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e","label":"security-advisories@github.com"},{"url":"https://github.com/tinytag/tinytag/pull/326","label":"security-advisories@github.com"},{"url":"https://github.com/tinytag/tinytag/releases/tag/2.3.0","label":"security-advisories@github.com"},{"url":"https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104266"},{"url":"https://github.com/advisories/GHSA-24cc-9352-h2pg"}],"tags":["nvd","cve.org","ghsa","pip"],"ingestedAt":"2026-10-15T18:23:58.444Z","aliases":["GHSA-24cc-9352-h2pg"],"ecosystem":"pip","patched":["tinytag 2.3.0"],"slug":"CVE-2026-104266","body":"## Overview\n\ntinytag is a Python library for reading audio file metadata. From 2.0.0 until 2.3.0, an M4A file containing a sub-atom with a size of zero inside a ---- atom can cause the metadata parser to stop advancing through the input. The custom-field atom traversal repeatedly processes the malformed location, causing an infinite loop and denying service to a program that reads the crafted file. This issue is fixed in version 2.3.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-104266)\n\nAffected packages:\n\n- `tinytag >= 2.0.0, < 2.3.0`\n\nPatched in:\n\n- `tinytag 2.3.0`\n\nSource: https://github.com/advisories/GHSA-24cc-9352-h2pg","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}