High severity · published Mar 18, 2026
CVE-2026-32256
music-metadata has an infinite loop vulnerability in ASF parser
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
music-metadata is a metadata parser for audio and video media files. Prior to version 11.12.3, music-metadata's ASF parser (`parseExtensionObject()` in `lib/asf/AsfParser.ts:112-158`) enters an infinite loop when a sub-object inside the ASF Header Extension Object has `objectSize = 0`. Version 11.12.3 fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
music-metadata · Borewit
< 11.12.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32256
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32256
Product
https://github.com/Borewit/music-metadata/releases/tag/v11.12.3
Mitigation
https://github.com/Borewit/music-metadata/security/advisories/GHSA-v6c2-xwv6-8xf7
More from music-metadata
7.5
CVE-2026-107392
music-metadata: uncatchable process crash parsing a crafted `.dsf` (residual of CVE-2026-32256)
7.5
CVE-2026-107391
music-metadata: MP4 stsd sample-entry size==0 causes a synchronous infinite loop (DoS) — unreleased regression on master
7.5
CVE-2026-107390
music-metadata: MP4 parser allows memory exhaustion via oversized extended atom length
5.5
CVE-2026-107389
music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
5.5
CVE-2026-107388
music-metadata: ID3v2 tag size not validated before allocation, causing memory exhaustion DoS