CVE-2026-32630
file-type affected by ZIP Decompression Bomb DoS via [Content_Types].xml entry
MEDIUM 5.3EPSS 0.4%
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
- sindresorhus · file-type
- CVSS v3.1 GITHUB
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - EPSS
- 0.45% chance of exploitation in the next 30 days, 38th percentile
- Published
- 2026-03-13
- Updated
- 2026-03-16
Proof-of-concept exploits (1)
Security advisories
- sindresorhus/file-type/security/advisories/GHSA-j47w-4g3g-c36v
- sindresorhus/file-type/commit/399b0f156063f5aeb1c124a7fd61028f3ea7c124