Medium severity · published Oct 8, 2026
CVE-2026-107388
music-metadata: ID3v2 tag size not validated before allocation, causing memory exhaustion DoS
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
music-metadata is a metadata parser for audio and video media files. Prior to 11.16.0, the ID3v2 parser trusts the syncsafe tag-size field and allocates the complete tag body before checking whether the input contains the declared bytes. A truncated file containing only an ID3v2 header can request an allocation approaching 268 MiB; the allocation succeeds, the subsequent read reaches end of stream, the EndOfStreamError is caught internally, and the caller receives a normal metadata object. This issue is fixed in version 11.16.0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
music-metadata · Borewit
< 11.16.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-107388
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-107388
x_refsource_CONFIRM
https://github.com/Borewit/music-metadata/security/advisories/GHSA-jjpr-9cvf-cq55
x_refsource_MISC
https://github.com/Borewit/music-metadata/pull/2743
x_refsource_MISC
https://github.com/Borewit/music-metadata/commit/b033db675b913a9dba1d29135ec3c10eae7095a7
x_refsource_MISC
https://github.com/Borewit/music-metadata/releases/tag/v11.16.0
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
7.5
CVE-2026-32256
music-metadata has an infinite loop vulnerability in ASF parser
5.5
CVE-2026-107389
music-metadata: EBML parser trusts element lengths, allowing memory exhaustion or process abort
