{"id":"CVE-2026-40910","revision":"90ab3286b137423ea92104caf1ff80d7","records":[{"revision":"90ab3286b137423ea92104caf1ff80d7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-40910","aliases":[],"title":"frp: Authentication bypass in frp HTTP vhost routing when routeByHTTPUser is used for access control","description":"frp is a fast reverse proxy. From 0.43.0 to 0.68.0, frp contains an authentication bypass in the HTTP vhost routing path when routeByHTTPUser is used as part of access control. In proxy-style requests, the routing logic uses the username from Proxy-Authorization to select the routeByHTTPUser backend, while the access control check uses credentials from the regular Authorization header. As a result, an attacker who can reach the HTTP vhost entrypoint and knows or can guess the protected routeByHTTPUser value may access a backend protected by httpUser / httpPassword even with an incorrect Proxy-Authorization password. This issue affects deployments that explicitly use routeByHTTPUser. It does not affect ordinary HTTP proxies that do not use this feature. This vulnerability is fixed in 0.68.1.","state":0,"publishedAt":"2026-04-21T20:09:00.893+00:00","modifiedAt":"2026-04-21T20:28:48.579+00:00","affected":[{"ecosystem":"Vendor product","name":"frp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"fatedier\",\n                    \"product\": \"frp\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.68.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/fatedier/frp/security/advisories/GHSA-pq96-pwvg-vrr9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-40910","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-40910","identifiers":["CVE-2026-40910"]},"retained":false,"historicalAffected":[]}],"coverage":[]}