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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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References
Link Providers
https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq cve-icon cve-icon
History

Fri, 24 Apr 2026 18:30:00 +0000

Type Values Removed Values Added
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.
Title uuid: Missing buffer bounds check in `v3`/`v5`/`v6` when `buf` is provided
Weaknesses CWE-787
CWE-823
References
Metrics cvssV4_0

{'score': 8.1, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-24T18:09:24.744Z

Updated: 2026-04-24T18:09:24.744Z

Reserved: 2026-04-22T15:11:54.673Z

Link: CVE-2026-41907

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-24T19:17:14.490

Modified: 2026-04-24T19:17:14.490

Link: CVE-2026-41907

cve-icon Redhat

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