# CVE-2026-104266: python-tinytag: tinytag is a Python library for reading audio file metadata

CVE-2026-104266 is fixed in python-tinytag on 1 platform by DEBIAN-CVE-2026-104266 (version 2.3.0-1), released October 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-104266
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0033
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 15, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-tinytag Debian 14 | 2.3.0-1 | [DEBIAN-CVE-2026-104266](https://patchblox.com/security/data/fix/linux/debian-cve-2026-104266.md) | Oct 17, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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