CVE-2026-107389

music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort

Published Oct 8, 2026 CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-5gfj-9q3v-qfp3 music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
History
Type Values Removed Values Added
CPEs cpe:2.3:a:borewit:music-metadata:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Borewit
Borewit music-metadata
Vendors & Products Borewit
Borewit music-metadata
Type Values Removed Values Added
Description 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.
Title music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
Weaknesses CWE-789
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 9, 2026, 6:32 PM
Reserved
Oct 7, 2026, 9:07 PM
Status
Analyzed
Published
Oct 8, 2026, 8:17 PM
Modified
Oct 21, 2026, 3:34 PM