{"cve":"CVE-2026-107804","nvd":{"published":"2026-10-09T15:17:09.750","modified":"2026-10-09T16:38:57.820","status":"Awaiting Analysis","description":"Nginx UI is a web user interface for the Nginx web server. From 2.2.0 until 2.6.0, the bundled reverse proxy does not preserve the external client identity used by Gin because the backend has no trusted proxy configuration. Management requests can be attributed to loopback and pass the IP allowlist loopback exception, although valid credentials are still required. Failed logins from different external clients are also attributed to the same loopback address, allowing an unauthenticated attacker to trigger a shared temporary login ban for password or OTP authentication without invalidating existing sessions. This issue is fixed in version 2.6.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-346"],"references":["https://github.com/0xJacky/nginx-ui/commit/e30e331303fc21cf077a2bea724bd79e66892eaf","https://github.com/0xJacky/nginx-ui/releases/tag/v2.6.0","https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-9h23-53f4-q947"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-107804","score":0.0022,"percentile":0.12415,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-9h23-53f4-q947","url":"https://osv.dev/vulnerability/GHSA-9h23-53f4-q947","summary":"Nginx UI: Bundled reverse proxy can bypass IP allowlists and enable shared login lockout","modified":"2026-10-19T21:41:02.427957611Z","packages":[{"ecosystem":"Go","name":"github.com/0xJacky/Nginx-UI","purl":"pkg:golang/github.com/0xJacky/Nginx-UI","ranges":[">=1.9.10-0.20251005005631-6de168c9454 <1.9.10-0.20260904075558-e30e331303fc"],"fixed":["1.9.10-0.20260904075558-e30e331303fc"]}]},{"id":"GO-2026-6724","url":"https://osv.dev/vulnerability/GO-2026-6724","summary":"Nginx UI: Bundled reverse proxy can bypass IP allowlists and enable shared login lockout in github.com/0xJacky/Nginx-UI","modified":"2026-10-19T21:31:35.961856588Z","packages":[{"ecosystem":"Go","name":"github.com/0xJacky/Nginx-UI","purl":"pkg:golang/github.com/0xJacky/Nginx-UI","ranges":["<1.9.10-0.20260904075558-e30e331303fc"],"fixed":["1.9.10-0.20260904075558-e30e331303fc"]}]}],"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."]}