CVE-2026-41988: CWE-670 Always-Incorrect Control Flow Implementation in uuidjs uuid
The uuidjs library versions before 14. 0. 0 contain a vulnerability (CVE-2026-41988) where unexpected writes can occur when using external output buffers with UUID versions 3, 5, or 6. This issue does not affect the commonly used UUID version 4. The vulnerability is classified under CWE-670, indicating always-incorrect control flow implementation. The CVSS score is low (3. 2), reflecting limited impact and complexity in exploitation. No known exploits are reported in the wild, and no official patch or remediation guidance is currently available from the vendor.
AI Analysis
Technical Summary
CVE-2026-41988 affects uuidjs's uuid package versions prior to 14.0.0. When external output buffers are used with UUID versions 3, 5, or 6, the library may perform unexpected writes due to incorrect control flow implementation (CWE-670). UUID version 4, which is widely used, is not impacted by this issue. The vulnerability has a CVSS 3.1 base score of 3.2, with attack vector local, high attack complexity, no privileges required, no user interaction, and a scope change. The impact is limited to integrity loss without confidentiality or availability impact. There is no vendor advisory or patch information available at this time.
Potential Impact
The vulnerability can cause unexpected writes when using UUID versions 3, 5, or 6 with external output buffers, potentially leading to integrity issues in affected applications. There is no impact on confidentiality or availability. UUID version 4 is unaffected, which reduces the overall risk given its common usage. No known exploits exist in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid using UUID versions 3, 5, or 6 with external output buffers in uuidjs versions prior to 14.0.0. Consider upgrading to version 14.0.0 or later once a patch is released.
CVE-2026-41988: CWE-670 Always-Incorrect Control Flow Implementation in uuidjs uuid
Description
The uuidjs library versions before 14. 0. 0 contain a vulnerability (CVE-2026-41988) where unexpected writes can occur when using external output buffers with UUID versions 3, 5, or 6. This issue does not affect the commonly used UUID version 4. The vulnerability is classified under CWE-670, indicating always-incorrect control flow implementation. The CVSS score is low (3. 2), reflecting limited impact and complexity in exploitation. No known exploits are reported in the wild, and no official patch or remediation guidance is currently available from the vendor.
CVSS v3.1
Score 3.2low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41988 affects uuidjs's uuid package versions prior to 14.0.0. When external output buffers are used with UUID versions 3, 5, or 6, the library may perform unexpected writes due to incorrect control flow implementation (CWE-670). UUID version 4, which is widely used, is not impacted by this issue. The vulnerability has a CVSS 3.1 base score of 3.2, with attack vector local, high attack complexity, no privileges required, no user interaction, and a scope change. The impact is limited to integrity loss without confidentiality or availability impact. There is no vendor advisory or patch information available at this time.
Potential Impact
The vulnerability can cause unexpected writes when using UUID versions 3, 5, or 6 with external output buffers, potentially leading to integrity issues in affected applications. There is no impact on confidentiality or availability. UUID version 4 is unaffected, which reduces the overall risk given its common usage. No known exploits exist in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid using UUID versions 3, 5, or 6 with external output buffers in uuidjs versions prior to 14.0.0. Consider upgrading to version 14.0.0 or later once a patch is released.
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: 4/30/2026, 8:11:49 AM
Last updated: 6/9/2026, 2:19:56 PM
Views: 88
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