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Advisory record · GHSA-5gfj-9q3v-qfp3

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

CVSS 6.2 MediumEPSS 0.0021 · 11th percentile

Published by the GitHub Advisory Database at 8 Oct 2026, 19:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
music-metadatanpm<11.16.011.16.0
Identifiers
GHSA-5gfj-9q3v-qfp3 · CVE-2026-107389
Weakness (CWE)
CWE-789
Tags
Published
8 Oct 2026
Updated
8 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The music-metadata npm package, versions before 11.16.0, has an EBML parser for Matroska/WebM files that uses element lengths from the file without checking them against the container or available input. An attacker who can get an application to parse a small crafted .webm, .mkv, or .mka file can cause a large memory allocation, memory exhaustion, or in some cases an uncatchable process abort. Upgrade to music-metadata 11.16.0, the listed fixed version.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.2 Medium 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0021, the 11th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:33 UTC First seen by agentprime
  2. 31 Oct 2026, 13:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.