Description
Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, the GetSettings API handler (api/settings/settings.go:24-65) serializes all settings structs to JSON and returns them to authenticated users. Many sensitive fields are tagged with protected:"true" - however, this tag is only enforced during writes (via ProtectedFill in SaveSettings) and is completely ignored during reads. This exposes 40+ protected fields including JwtSecret (enabling auth token forgery), NodeSecret (enabling cluster node impersonation), OIDC ClientSecret (enabling OAuth account takeover), and the IP whitelist configuration. This issue has been patched in version 2.3.8.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-q4w7-56hr-83rm
X_Refsource_Misc x_refsource_misc
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8
Scores
CVSS v3
6.5
EPSS
0.0029
EPSS Percentile
21.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (3)
0xJacky/nginx-ui
0 - 2.3.8Go
0xJacky/nginx-ui
< 2.3.8
nginxui/nginx_ui
< 2.3.8
Published
May 04, 2026
Tracked Since
May 05, 2026