uuid before 14.0.0 can make unexpected writes when external output buffers are used, and the UUID version is 3, 5, or 6. In particular, UUID version 4, which is very commonly used, is unaffected by this issue.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Uuidjs
  • Uuid

No data.

No data.

References
Link Providers
https://github.com/uuidjs/uuid/commit/3d2c5b0342f0fcb52a5ac681c3d47c13e7444b34 cve-icon cve-icon cve-icon
https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq cve-icon cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-41988 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-41988 cve-icon
History

Mon, 27 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Uuidjs
Uuidjs uuid
Vendors & Products Uuidjs
Uuidjs uuid

Sun, 26 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
Title uuid: uuid: Unexpected data writes when using external output buffers with specific UUID versions
Weaknesses CWE-787
References
Metrics threat_severity

None

 threat_severity

Low

Thu, 23 Apr 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 23 Apr 2026 05:00:00 +0000

Type Values Removed Values Added
Description uuid before 14.0.0 can make unexpected writes when external output buffers are used, and the UUID version is 3, 5, or 6. In particular, UUID version 4, which is very commonly used, is unaffected by this issue.
Weaknesses CWE-670
References
Metrics cvssV3_1

{'score': 3.2, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-04-23T04:00:54.960Z

Updated: 2026-04-23T16:22:56.684Z

Reserved: 2026-04-23T04:00:54.532Z

Link: CVE-2026-41988

cve-icon Vulnrichment

Updated: 2026-04-23T14:48:58.864Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-23T05:16:05.613

Modified: 2026-04-24T14:50:56.203

Link: CVE-2026-41988

cve-icon Redhat

Severity : Low

Publid Date: 2026-04-23T04:00:54Z

Links: CVE-2026-41988 - Bugzilla