5.9mediumMedium
CVE-2026-67214
Nanoid Project Nanoid
nanoid (Nano ID) before 3.3.16 and 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.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 5.9 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H- CVSS v4
- 8.2
- Weakness
- CWE-835
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-07-29
- Last modified
- 2026-08-26
- Sources
- NVD
Affected products
- Nanoid Project Nanoid- 3.3.16, 5.0.0 - 5.1.16
As listed in the NVD configuration data. Not a statement about your estate.