CVE-2026-32630

Name: CVE-2026-32630
Creator: NVD / NIST
Published: 2026-03-16T14:19:40.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2026-32630 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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(). EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.30%

21.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-409

Affected Software

Vendor	Product	Versions
Sindresorhus	File-Type	>= 20.0.0, < 21.3.2

References

https://github.com/sindresorhus/file-type/commit/399b0f156063f5aeb1c124a7fd61028f3ea7c124Patch
https://github.com/sindresorhus/file-type/security/advisories/GHSA-j47w-4g3g-c36vExploit, Vendor Advisory
https://github.com/sindresorhus/file-type/security/advisories/GHSA-j47w-4g3g-c36vExploit, Vendor Advisory

Timeline

Published: Mar 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-32630?

How severe is CVE-2026-32630?

CVE-2026-32630 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2026-32630?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-32630?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST