Buffer overflow in Uuidjs Uuid
CVE-2026-41907
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Uuidjs Uuid — versions < 14.0.0, 12.0.0, 13.0.0
Weakness classification (CWE)
References
- github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-41907?
- CVE-2026-41907 is a high-severity vulnerability in Uuidjs Uuid, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2026-04-24.
- How severe is CVE-2026-41907?
- High severity. CVSS v3 base score is 7.5 out of 10.