Insufficient Session Expiration in nginx-ui - #VU142583
Published: August 14, 2026
Vulnerability identifier: #VU142583
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-613
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to regain access using a previously revoked short token.
The vulnerability exists due to insufficient session expiration in short-token cache handling when processing short-token authentication after an account is re-enabled. A remote user can reuse a previously revoked short token to regain access using a previously revoked short token.
This affects standalone short tokens used for WebSocket and explicit-token authentication, and exploitation requires the account to be re-enabled before the cached token entry expires.
Affected software
nginx-ui
Remediation
Install security update from vendor's website.
nginx-ui - update to 2.4.1