{"id":"CVE-2026-73501","revision":"551d070b31054bdba78c50ad4ce93ee2","records":[{"revision":"551d070b31054bdba78c50ad4ce93ee2","observedAt":"2026-10-25T15:19:09.409+00:00","statement":{"source":"nvd","id":"CVE-2026-73501","aliases":[],"title":"kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load() in openapi3filter/validation_handler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without che…","description":"kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load() in openapi3filter/validation_handler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI security requirement to be satisfied for unauthenticated requests when an application relies on ValidationHandler as its enforcement middleware. The no-op callback prevents the fail-closed ErrAuthenticationServiceMissing path from being reached and forwards the request to protected handlers that may require an API key, OAuth token, or another security scheme. This issue is fixed in version 0.144.0.","state":0,"publishedAt":"2026-08-12T22:17:17.443+00:00","modifiedAt":"2026-10-24T15:10:00.19+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1,"severity":"CRITICAL"}],"references":["https://github.com/getkin/kin-openapi/commit/f0407d53b0730280266f454b755010e7eeb985da","https://github.com/getkin/kin-openapi/releases/tag/v0.144.0","https://github.com/getkin/kin-openapi/security/advisories/GHSA-r277-6w6q-xmqw"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73501","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-287"],"productCriteria":[],"sourceDates":{"published":"2026-08-12T22:17:17.443","lastModified":"2026-10-24T15:10:00.190"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-73501","identifiers":["CVE-2026-73501"]},"retained":false,"historicalAffected":[]}],"coverage":[]}