CVE-2026-104266
mediumtinytag is a Python library for reading audio file metadata.
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-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.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-10-15 18:17
Modified: 2026-10-21 01:17
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 07:03 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e security-advisories@github.com
- https://github.com/tinytag/tinytag/pull/326 security-advisories@github.com
- https://github.com/tinytag/tinytag/releases/tag/2.3.0 security-advisories@github.com
- https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗