CVE-2026-41988: CWE-670 Always-Incorrect Control Flow Implementation in uuidjs uuid
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.
AI Analysis
Technical Summary
The uuidjs library prior to version 14.0.0 contains a vulnerability (CVE-2026-41988) related to incorrect control flow (CWE-670) that can cause unexpected writes when external output buffers are used with UUID versions 3, 5, or 6. This issue does not affect UUID version 4. The CVSS 3.1 base score is 3.2, indicating low severity with local attack vector, high attack complexity, no privileges required, no user interaction, and a scope change. There is no official patch or remediation level provided, and no known exploits have been reported in the wild.
Potential Impact
The vulnerability may lead to unexpected writes affecting the integrity of the system when generating UUIDs of versions 3, 5, or 6 using external output buffers. Since UUID version 4 is unaffected and the attack complexity is high with no privileges required, the overall impact is limited. There are no reports of exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid using external output buffers with UUID versions 3, 5, or 6 in uuidjs versions before 14.0.0. UUID version 4 usage remains unaffected and safe in this context.
CVE-2026-41988: CWE-670 Always-Incorrect Control Flow Implementation in uuidjs uuid
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The uuidjs library prior to version 14.0.0 contains a vulnerability (CVE-2026-41988) related to incorrect control flow (CWE-670) that can cause unexpected writes when external output buffers are used with UUID versions 3, 5, or 6. This issue does not affect UUID version 4. The CVSS 3.1 base score is 3.2, indicating low severity with local attack vector, high attack complexity, no privileges required, no user interaction, and a scope change. There is no official patch or remediation level provided, and no known exploits have been reported in the wild.
Potential Impact
The vulnerability may lead to unexpected writes affecting the integrity of the system when generating UUIDs of versions 3, 5, or 6 using external output buffers. Since UUID version 4 is unaffected and the attack complexity is high with no privileges required, the overall impact is limited. There are no reports of exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid using external output buffers with UUID versions 3, 5, or 6 in uuidjs versions before 14.0.0. UUID version 4 usage remains unaffected and safe in this context.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-23T04:00:54.532Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e9a8be87115cfb68a6012b
Added to database: 4/23/2026, 5:06:06 AM
Last enriched: 4/23/2026, 5:21:13 AM
Last updated: 4/24/2026, 11:13:07 PM
Views: 24
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