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Medium · 5.3 CVE-2026-32630 EUVD-2026-12139GHSA-j47w-4g3g-c36v

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

Published Mar 13, 2026 · Updated Mar 16, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
sindresorhus file-type >= 20.0.0, < 21.3.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm file-type >= 20.0.0, < 21.3.2 21.3.2 GHSA-j47w-4g3g-c36v

Advisories 1

References