What’s Vulnerable › Vulnerabilities

CVE-2026-107388: music-metadata: ID3v2 tag size not validated before allocation, causing memory exhaustion DoS

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-10-08 · updated 2026-10-14
• Weakness: CWE-789

Description

music-metadata is a metadata parser for audio and video media files. Prior to 11.16.0, the ID3v2 parser trusts the syncsafe tag-size field and allocates the complete tag body before checking whether the input contains the declared bytes. A truncated file containing only an ID3v2 header can request an allocation approaching 268 MiB; the allocation succeeds, the subsequent read reaches end of stream, the EndOfStreamError is caught internally, and the caller receives a normal metadata object. This issue is fixed in version 11.16.0.

Affected products

• Borewit music-metadata: before 11.16.0 — fixed in 11.16.0

How to fix

Upgrade to a fixed version: Borewit music-metadata 11.16.0. Check the vendor advisory for mitigations.

References

• https://github.com/Borewit/music-metadata/commit/b033db675b913a9dba1d29135ec3c10eae7095a7
• https://github.com/Borewit/music-metadata/pull/2743
• https://github.com/Borewit/music-metadata/releases/tag/v11.16.0
• https://github.com/Borewit/music-metadata/security/advisories/GHSA-jjpr-9cvf-cq55
• https://github.com/Borewit/music-metadata/security/advisories/GHSA-jjpr-9cvf-cq55

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