Infinite loop in nanoid - CVE-2026-67214
Published: September 10, 2026 / Updated: September 16, 2026
Vulnerability identifier: #VU148866
CSH Severity: Low
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-67214
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure). A remote attacker can consume all available system resources and cause denial of service conditions.
Affected software
nanoid
Crowd Data Center
Jira Software Data Center
InfoSphere Optim Archive Viewer
Netezza Appliance - Cyclops
Crowd Data Center
Jira Software Data Center
InfoSphere Optim Archive Viewer
Netezza Appliance - Cyclops
How to mitigate CVE-2026-67214
Install updates from vendor's website.
nanoid - addressed in versions 3.3.16, 5.1.16
Crowd Data Center - update to 7.2.3
Jira Software Data Center - addressed in versions 10.3.25, 11.3.11
InfoSphere Optim Archive Viewer - update to 11.7.0.15
Netezza Appliance - Cyclops - update to 11.3.1.4
Crowd Data Center - update to 7.2.3
Jira Software Data Center - addressed in versions 10.3.25, 11.3.11
InfoSphere Optim Archive Viewer - update to 11.7.0.15
Netezza Appliance - Cyclops - update to 11.3.1.4
External References
- https://github.com/ai/nanoid/commit/6ccc67bbaba71d3d77a21d9b636f4171a268ce49
- https://github.com/ai/nanoid/releases/tag/3.3.16
- https://github.com/ai/nanoid/releases/tag/5.1.16
- https://www.vulncheck.com/advisories/nanoid-before-infinite-loop-via-negative-size-in-non-secure-module
- https://github.com/advisories/GHSA-28wg-ghj8-5hjv