{"cve":"CVE-2026-42223","nvd":{"published":"2026-05-04T21:16:32.320","modified":"2026-10-26T19:10:00.163","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-200"],"references":["https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8","https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-q4w7-56hr-83rm","https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-q4w7-56hr-83rm"],"products":["nginxui:nginx_ui"],"source":"nvd","synced_at":"2026-10-26T19:31:02.781428341+00:00"},"epss":{"cve":"CVE-2026-42223","score":0.00295,"percentile":0.21992,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-q4w7-56hr-83rm","url":"https://osv.dev/vulnerability/GHSA-q4w7-56hr-83rm","summary":"Nginx-UI Settings API Exposes Protected Secrets","modified":"2026-06-25T23:11:35.961818136Z","packages":[{"ecosystem":"Go","name":"github.com/0xJacky/nginx-ui","purl":"pkg:golang/github.com/0xJacky/nginx-ui","ranges":["<2.3.8"],"fixed":["2.3.8"]}]},{"id":"GO-2026-5565","url":"https://osv.dev/vulnerability/GO-2026-5565","summary":"Nginx-UI Settings API Exposes Protected Secrets in github.com/0xJacky/nginx-ui","modified":"2026-06-25T23:01:31.587658502Z","packages":[{"ecosystem":"Go","name":"github.com/0xJacky/nginx-ui","purl":"pkg:golang/github.com/0xJacky/nginx-ui","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}