What is CVE-2026-67214?

CVE-2026-67214 is a medium-severity vulnerability in Nanoid_project Nanoid, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.9/10. Published 2026-07-29.

How severe is CVE-2026-67214?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Nanoid_project Nanoid

CVE-2026-67214

nanoid (Nano ID) before 5.1.16 contains an infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure). When these functions are given a negative size, the loop counter is decremented from a negati…

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Nanoid_project Nanoid — versions 0, 5.1.16

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-67214?: CVE-2026-67214 is a medium-severity vulnerability in Nanoid_project Nanoid, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.9/10. Published 2026-07-29.
How severe is CVE-2026-67214?: Medium severity. CVSS v3 base score is 5.9 out of 10.