{"id":"CVE-2026-73502","revision":"9b66f0fe9d814a6db2c22f3c5351022c","records":[{"revision":"9b66f0fe9d814a6db2c22f3c5351022c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-73502","aliases":[],"title":"kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema","description":"kin-openapi is a Go project for handling OpenAPI files. From 0.2.0 until 0.144.0, openapi3filter.ValidateRequest can encounter a NULL-pointer-dereference denial of service when an operation declares a content parameter whose application/json media type has no schema. In openapi3filter/req_resp_decoder.go, the default defaultContentParameterDecoder dereferences mt.Schema.Value without checking whether mt.Schema is nil, even though doc.Validate() accepts the document under OpenAPI 3.0.x and 3.1.x. A single unauthenticated request supplying the parameter value can panic request validation, causing an aborted request with log growth in the common synchronous net/http path or a full process crash in integrations without recovery. This issue is fixed in version 0.144.0.","state":0,"publishedAt":"2026-08-18T17:58:21.32+00:00","modifiedAt":"2026-08-18T18:42:16.744+00:00","affected":[{"ecosystem":"Vendor product","name":"kin-openapi","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"getkin\",\n                    \"product\": \"kin-openapi\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 0.2.0, < 0.144.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/getkin/kin-openapi/security/advisories/GHSA-jpcw-4wr7-c3vq","https://github.com/getkin/kin-openapi/commit/68ac2affa325514d7d6e731204d6a1edf6bdff64","https://github.com/getkin/kin-openapi/releases/tag/v0.144.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-73502","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-73502","identifiers":["CVE-2026-73502"]},"retained":false,"historicalAffected":[]}],"coverage":[]}