CVE-2026-40910
- Source
- https://cve.org/CVERecord?id=CVE-2026-40910
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40910.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-40910
- Aliases
- Published
- 2026-04-21T20:09:00.893Z
- Modified
- 2026-07-08T08:02:56.175455888Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
- Summary
- frp: Authentication bypass in frp HTTP vhost routing when routeByHTTPUser is used for access control
- Details
-
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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40910.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-287" ] }- References