CVE-2026-41988

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.

CVSS v3.1 Score

3.2

LOW

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0002

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-670 CWE-670

References

Other References

https://github.com/uuidjs/uuid/commit/3d2c5b0342f0fcb52a5ac681c3d47c13e7444b34 https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq

Frequently Asked Questions

What is CVE-2026-41988? +

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. It has a CVSS v3.1 base score of 3.2 (LOW).

How severe is CVE-2026-41988? +

CVE-2026-41988 has a CVSS v3.1 score of 3.2 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0002, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-41988? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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