CVE-2026-41907: Uuidjs Uuid

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 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.

Affected products

• Uuidjs Uuid: before 11.1.1 (fixed in 11.1.1); version 12.0.0 only; version 13.0.0 only

Published 2026-04-24. Last modified 2026-06-17.