Vulnerability in Borewit Music-Metadata
CVE-2026-107389
music-metadata is a metadata parser for audio and video media files. Prior to 11.16.0, the Matroska and WebM EBML parser decodes an attacker-controlled VINT element length and uses it for string-token or Uint8Array allocation before confirming that the leaf fits within its parent or available input. Crafted WebM, MKV, or MKA inputs can cause disproportionate allocations, out-of-memory denial of service, or, for a demonstrated parseFile path on Node.js 26.7.0, an uncatchable V8 fatal abort. The exact failure mode depends on the tokenizer, parser API, and runtime, but the affected leaf-length validation flaw is shared and has availability impact only. This issue is fixed in version 11.16.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Borewit Music-Metadata — versions < 11.16.0
Weakness classification (CWE)
References
- github.com/Borewit/music-metadata/security/advisories/GHSA-5gfj-9q3v-qfp3
- github.com/Borewit/music-metadata/pull/2735
- github.com/Borewit/music-metadata/commit/163f013364ac9fc8dd0c3987433cd065a615af…
- github.com/Borewit/music-metadata/commit/2d14dc1f7391a94235948a0b823155538f69b3…
- github.com/Borewit/music-metadata/releases/tag/v11.16.0
Frequently asked questions
- What is CVE-2026-107389?
- CVE-2026-107389 is a medium-severity vulnerability in Borewit Music-Metadata, classified under CWE-789. CVSS score: 6.2/10. Published 2026-10-08.
- How severe is CVE-2026-107389?
- Medium severity. CVSS v3 base score is 6.2 out of 10.