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.
Published: 2026-10-15
Score: 6.5 Medium
EPSS: n/a
KEV: No
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History

Thu, 15 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
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.
Title tinytag: Infinite loop when parsing certain M4A files containing invalid atoms
Weaknesses CWE-835
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-15T17:13:26.636Z

Reserved: 2026-10-01T19:04:39.707Z

Link: CVE-2026-104266

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-15T18:17:22.983

Modified: 2026-10-15T18:17:22.983

Link: CVE-2026-104266

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-835

    Loop with Unreachable Exit Condition ('Infinite Loop')