How severe is CVE-2026-32630?

CVE-2026-32630 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-32630 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32630?

CVE-2026-32630 affects Sindresorhus File-type. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32630?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-32630 have an EU (EUVD) identifier?

Yes. CVE-2026-32630 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12139.

When was CVE-2026-32630 published?

CVE-2026-32630 was published on 2026-03-16 and last updated on 2026-06-17.

CVE-2026-32630

CVE-2026-32630 is a medium-severity vulnerability in Sindresorhus File-type with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-409.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12139
Weakness: CWE-409
Affected product: Sindresorhus File-type
Published: 2026-03-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-32630?: 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.
How severe is CVE-2026-32630?: CVE-2026-32630 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-32630 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32630?: CVE-2026-32630 affects Sindresorhus File-type. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32630?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-32630 have an EU (EUVD) identifier?: Yes. CVE-2026-32630 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12139.
When was CVE-2026-32630 published?: CVE-2026-32630 was published on 2026-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sindresorhus:file-type:*:*:*:*:*:node.js:*:*

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