{"id":"CVE-2026-73502","title":"kin-openapi is a Go project for handling OpenAPI files","summary":"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/…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-476"],"vendor":"Red Hat","product":"Red Hat Edge Manager 1","affected":["migration_toolkit_for_applications 8","multicluster_engine_for_kubernetes","multicluster_global_hub","openshift_serverless","3scale_api_management_platform 2","advanced_cluster_management_for_kubernetes 2","ceph_storage 5","ceph_storage 6","ceph_storage 7","ceph_storage 8","ceph_storage 9","edge_manager 1","enterprise_linux 10","enterprise_linux 9","openshift_ai_rhoai","openshift_container_platform 4","openshift_gitops","openstack_platform 18.0","service_interconnect 2"],"patched":["github.com/getkin/kin-openapi 0.144.0"],"published":"2026-08-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:09:01.757","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73502","references":[{"url":"https://github.com/getkin/kin-openapi/commit/68ac2affa325514d7d6e731204d6a1edf6bdff64","label":"security-advisories@github.com"},{"url":"https://github.com/getkin/kin-openapi/releases/tag/v0.144.0","label":"security-advisories@github.com"},{"url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-jpcw-4wr7-c3vq","label":"security-advisories@github.com"},{"url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-jpcw-4wr7-c3vq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73502.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-73502"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2518119"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-73502"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73502"},{"url":"https://github.com/getkin/kin-openapi"}],"tags":["nvd","csaf","vex","red-hat","osv","go"],"epss":0.00451,"epssPercentile":0.38559,"aliases":["GHSA-jpcw-4wr7-c3vq"],"ecosystem":"go","ingestedAt":"2026-08-13T19:18:21.232Z","slug":"CVE-2026-73502","body":"## Overview\n\nkin-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-73502)\n\nAffected packages:\n\n- `github.com/getkin/kin-openapi < 0.144.0`\n\nPatched in:\n\n- `github.com/getkin/kin-openapi 0.144.0`\n\nSource: https://osv.dev/vulnerability/GHSA-jpcw-4wr7-c3vq\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Migration Toolkit for Applications 8, Multicluster Engine for Kubernetes, Multicluster Global Hub, OpenShift Serverless, Red Hat 3scale API Management Platform 2, Red Hat Advanced Cluster Management for Kubernetes 2, … · no fix planned: Migration Toolkit for Applications 8, Multicluster Engine for Kubernetes, Multicluster Global Hub, OpenShift Serverless, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73502.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}