High 8.1Published Apr 24, 2026

CVE-2026-41907uuid: Missing buffer bounds check in `v3`/`v5`/`v6` when `buf` is provided

Updated under an hour ago (Oct 26, 2026, 12:50 PM ET)

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It affects uuidjs uuid. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for uuidjs uuid

Exploited in the last 30 days

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: 8.1 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-823, CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

uuidjs uuid uuidjs:uuid (from the name)	before 14.0.0	CNA record
uuidjs uuid uuidjs:uuid	before 11.1.1; 12.0.0; 13.0.0	NVD

References

References

https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq	x-refsource-confirm, exploit, mitigation, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.