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CVE-2026-32630

file-type affected by ZIP Decompression Bomb DoS via [Content_Types].xml entry

Published: Mar 13, 2026Updated: Mar 17, 2026 Sources: CVE List NVD GHSACWE-409
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.3%
Top 78.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

file-type detects the file type of a file, stream, or data. From 20.0.0 to 21.3.1, a crafted ZIP file can trigger excessive memory growth during type detection in file-type when using fileTypeFromBuffer(), fileTypeFromBlob(), or fileTypeFromFile(). The ZIP inflate output limit is enforced for stream-based detection, but not for known-size inputs. As a result, a small compressed ZIP can cause file-type to inflate and process a much larger payload while probing ZIP-based formats such as OOXML. This vulnerability is fixed in 21.3.2.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-409

Affected Products

file-typesindresorhus
Library
OSS Libraries / npm
file-typenpmOSS Libraries
sindresorhusindividual-devOSS Librariesaka sindresorhus
npmpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://github.com/sindresorhus/file-type/commit/399b0f156063f5aeb1c124a7fd61028f3ea7c124
github.com
https://github.com/sindresorhus/file-type/security/advisories/GHSA-j47w-4g3g-c36v
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-32630
nvd.nist.gov
and 3 more references View all →

Timeline

Published
Mar 13, 2026
Last Updated
Mar 17, 2026

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