{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:fatedier:frp:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.68.1"
              },
              {
                "introduced": "0.43.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "fe5fb0326b2aa7741d5b5d8f8c4c3ca12bb4ed91"
            },
            {
              "fixed": "4ec8de973f52a1cabde54ad3499216cf1bc3dbaf"
            }
          ],
          "repo": "https://github.com/fatedier/frp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pq96-pwvg-vrr9"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40910.json"
  },
  "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.",
  "id": "CVE-2026-40910",
  "modified": "2026-07-08T05:37:11.252029371Z",
  "published": "2026-04-21T20:09:00.893Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40910.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/fatedier/frp/security/advisories/GHSA-pq96-pwvg-vrr9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40910"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "frp: Authentication bypass in frp HTTP vhost routing when routeByHTTPUser is used for access control"
}