{"apiVersion":"1.0","identifier":"CVE-2026-73502","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.","publishedAt":"2026-08-18T18:19:33","lastModifiedAt":"2026-08-18T19:17:03","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73502","cvssScore":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","epssProbability":0.00372,"riskScore":0.55,"affectedProduct":"kin-openapi","affectedVersions":">=0.2.0,<0.144.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73502","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73502","en":"https://www.redsauce.net/en/cves/CVE-2026-73502","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73502","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73502","de":"https://www.redsauce.net/de/cves/CVE-2026-73502","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73502","el":"https://www.redsauce.net/el/cves/CVE-2026-73502"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73502"}}