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Vulnerability record · CVE-2026-41907 · published 24 April 2026

CVE-2026-41907: Uuidjs uuid out-of-bounds write vulnerability

UUuidjs · Uuid

uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.

8.1 CVSS 4.0 High EPSS 0.38% · top 70.9% CWE-787 · Out-of-bounds writeCWE-823 · CWE-823
8.1CVSS 4.0 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq ExploitMitigationVendor Advisory
https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-41907), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.