CVE WatchOct 9, 2026

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

CVSS

6.2

Medium

EPSS

0.1%

KEV

—

Exploit Today

0-100

Published: Oct 8, 2026 · Last modified: Oct 9, 2026 · CWE-789

EPSS · 30d

0.1%EPSS · 30 days0.1%

2026-10-092026-10-12

Technical 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.

Official references

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