CVE Explorer
CVE-2026-40910
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 routeByHT
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"frp","vendor":"fatedier","versions":[{"status":"affected","version":"< 0.68.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:cc30f9170de8765294e9f9b7c8cfcbc9f446ceb3d1da954937a73ae8cf9e110f · sha256:4e98ff019efc9611… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:cc30f9170de8765294e9f9b7c8cfcbc9f446ceb3d1da954937a73ae8cf9e110f · sha256:4e98ff019efc9611… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:cc30f9170de8765294e9f9b7c8cfcbc9f446ceb3d1da954937a73ae8cf9e110f · sha256:4e98ff019efc9611… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["exploit"],"url":"https://github.com/fatedier/frp/security/advisories/GHSA-pq96-pwvg-vrr9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cc30f9170de8765294e9f9b7c8cfcbc9f446ceb3d1da954937a73ae8cf9e110f · sha256:4e98ff019efc9611… · /containers/adp/0/references/0
{"name":"https://github.com/fatedier/frp/security/advisories/GHSA-pq96-pwvg-vrr9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/fatedier/frp/security/advisories/GHSA-pq96-pwvg-vrr9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cc30f9170de8765294e9f9b7c8cfcbc9f446ceb3d1da954937a73ae8cf9e110f · sha256:4e98ff019efc9611… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.