CVE-2026-104266

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e
https://github.com/tinytag/tinytag/pull/326
https://github.com/tinytag/tinytag/releases/tag/2.3.0
https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg

Configurations

No configuration.

History

15 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-15 18:17

Updated : 2026-10-21 01:17

NVD link : CVE-2026-104266

Mitre link : CVE-2026-104266

CVE.ORG link : CVE-2026-104266

JSON object : View

Products Affected

No product.

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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