Information disclosure in nginx-ui - CVE-2026-42223
Published: July 17, 2026
Vulnerability identifier: #VU138334
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-42223
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper access control in the GetSettings API handler when handling requests to retrieve application settings. A remote user can send a request to the /api/settings endpoint to disclose sensitive information.
Exposed data may include protected secrets such as JwtSecret, NodeSecret, OIDC ClientSecret, Casdoor ClientSecret, and IP whitelist configuration.
Affected software
nginx-ui
How to mitigate CVE-2026-42223
Install security update from vendor's website.
nginx-ui - update to 2.3.8