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-sec
CVSS
5.9
Medium
EPSS
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KEV
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Exploit Today
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0-100
Published: Jul 29, 2026 · Last modified: Jul 29, 2026 · CWE-835
Not enough EPSS history yet.
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 negative value and never reaches its termination condition, spinning indefinitely and hanging the calling thread. An application that passes an unvalidated, attacker-controlled negative size to these functions is exposed to a denial-of-service condition.