CVE-2026-107391: music-metadata DoS — Exploit & Fix

Description

music-metadata is a metadata parser for audio and video media files. In the public development revision introduced after 11.14.0, a development-branch regression in the MP4 stsd sample-description parser allows an attacker-controlled sample-entry size of zero to prevent the StsdAtom.get cursor from advancing while an attacker-controlled entry_count keeps the synchronous loop running. A crafted MP4-family input can block the Node.js event loop and grow the sample-description table until the process is terminated or exhausts memory. The vulnerable change was present on the public master branch but was not included in music-metadata 11.14.0 or any earlier npm release, and version 11.16.0 contains the fix. This issue is fixed in version 11.16.0.

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CVSS v3.1 Score

6.2

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.18%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

CWE-835 CWE-835

Affected Products

Vendor	Product	Versions
borewit	music-metadata	11.14.0 — 11.16.0

References

Advisories & Patches

https://github.com/Borewit/music-metadata/commit/90a7d52c69e921a0b019592d887acd97b1c8b8a5 https://github.com/Borewit/music-metadata/pull/2734 https://github.com/Borewit/music-metadata/releases/tag/v11.16.0 https://github.com/Borewit/music-metadata/security/advisories/GHSA-f94x-6692-553q

Exploits

https://github.com/Borewit/music-metadata/commit/90a7d52c69e921a0b019592d887acd97b1c8b8a5 https://github.com/Borewit/music-metadata/pull/2734 https://github.com/Borewit/music-metadata/security/advisories/GHSA-f94x-6692-553q

Frequently Asked Questions

What is CVE-2026-107391? +

music-metadata is a metadata parser for audio and video media files. In the public development revision introduced after 11.14.0, a development-branch regression in the MP4 stsd sample-description parser allows an attacker-controlled sample-entry size of zero to prevent the StsdAtom.get cursor from advancing while an attacker-controlled entry_count keeps the synchronous loop running. A crafted MP4-family input can block the Node.js event loop and grow the sample-description table until the process is terminated or exhausts memory. The vulnerable change was present on the public master branch but was not included in music-metadata 11.14.0 or any earlier npm release, and version 11.16.0 contains the fix. This issue is fixed in version 11.16.0. It has a CVSS v3.1 base score of 6.2 (MEDIUM).

How severe is CVE-2026-107391? +

CVE-2026-107391 has a CVSS v3.1 score of 6.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-107391? +

CVE-2026-107391 affects products from borewit, specifically: music-metadata. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-107391? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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