CVE-2026-41907

HIGH

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

Title source: cna

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.

References (1)

[X_Refsource_Confirm] https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq

Scores

CVSS v4 8.1

EPSS 0.0006

EPSS Percentile 17.2%

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-787 CWE-823

Status published

Products (1)

uuidjs/uuid < 14.0.0

Published Apr 24, 2026

Tracked Since Apr 24, 2026