CVE-2026-107391 music-metadata: MP4 stsd sample-entry size==0 causes a synchronous infinite loop (DoS) — unreleased regression on master
A crafted MP4 file can cause an infinite loop and memory exhaustion in the music-metadata library, blocking the Node.js event loop.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-107391?
CVE-2026-107391 is a medium-severity denial of service vulnerability in Borewit music-metadata, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-107391?
2 open source packages ship an affected version, including music-metadata. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
music-metadata npm | All versions | 11.16.0 |
music-metadata npm | All versions | 11.16.0 |
Products include Borewit Music-Metadata.
How do I fix CVE-2026-107391?
Upgrade music-metadata to 11.16.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-107391 being exploited?
There is no known exploitation of CVE-2026-107391 in the wild and no public exploit code.
Other vulnerabilities in Borewit music-metadata
- CVE-2026-32256 music-metadata has an infinite loop vulnerability in ASF parser
- CVE-2026-107387 music-metadata: Uncontrolled memory allocation in APEv2 parser
- CVE-2026-107388 music-metadata: ID3v2 tag size not validated before allocation, causing memory exhaustion DoS
- CVE-2026-107389 music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
- CVE-2026-107390 music-metadata: MP4 parser allows memory exhaustion via oversized extended atom length
Sources
Also known as GHSA-f94x-6692-553q, MINI-q2pp-m6ch-94ch.