CVE-2026-104266

Name	CVE-2026-104266
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-tinytag (PTS)	forky, sid	2.3.2-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-tinytag	source	(unstable)	2.3.0-1

Notes

https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg
https://github.com/tinytag/tinytag/pull/326
https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e (2.3.0)