{"id":"CVE-2026-100353","published":"2026-10-15T17:17:07.627","lastModified":"2026-10-15T17:17:07.747","description":"kin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.149.0, three openapi3filter decoder paths that were missed by the fix for GHSA-p6wj-qrr4-pgh5 lack a nil-items guard for legal OpenAPI 3.1 array schemas. An unauthenticated remote client can trigger a deterministic nil-pointer panic through an array query parameter, a deepObject query parameter containing an array property, or an application/x-www-form-urlencoded request body whose array property appears inside an allOf, anyOf, or oneOf subschema. The query and composed-body paths reach urlValuesDecoder.parseArray, while the deepObject path reaches buildResObj, and all pass a nil items schema into code that dereferences it. This issue is fixed in version 0.149.0.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-476"],"vendors":[],"products":[],"references":[{"url":"https://github.com/getkin/kin-openapi/commit/9814d1f2b212f3508bf52296aa9e248b2122a5a9","tags":[]},{"url":"https://github.com/getkin/kin-openapi/releases/tag/v0.149.0","tags":[]},{"url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-vrcc-3ch7-hppw","tags":[]}],"exploitRefs":[{"url":"https://github.com/getkin/kin-openapi/commit/9814d1f2b212f3508bf52296aa9e248b2122a5a9","tags":[]},{"url":"https://github.com/getkin/kin-openapi/releases/tag/v0.149.0","tags":[]},{"url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-vrcc-3ch7-hppw","tags":[]}],"hasPoc":true,"ai":null}