{"id":"CVE-2026-97394","title":"kin-openapi is a Go project for handling OpenAPI files","summary":"kin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.143.0, openapi3filter accepts OpenAPI 3.1 array schemas without an items keyword and then dereferences the nil Schema.Items value while decoding application/x-w…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-248","CWE-476"],"vendor":"getkin","product":"kin-openapi","affected":["kin-openapi >= 0.136.0, < 0.143.0"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T16:18:25.457","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97394","references":[{"url":"https://github.com/getkin/kin-openapi/commit/30e292371a89ca6d1f91a9553e0aa518b49f838d","label":"security-advisories@github.com"},{"url":"https://github.com/getkin/kin-openapi/releases/tag/v0.143.0","label":"security-advisories@github.com"},{"url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-p6wj-qrr4-pgh5","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-15T16:13:11.357Z","slug":"CVE-2026-97394","body":"## Overview\n\nkin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.143.0, openapi3filter accepts OpenAPI 3.1 array schemas without an items keyword and then dereferences the nil Schema.Items value while decoding application/x-www-form-urlencoded or multipart/form-data request bodies, response headers, and other array parameter surfaces. A remote unauthenticated client can reach an affected operation with a nonempty request or matching response and deterministically trigger a nil-pointer panic during ValidateRequest or ValidateResponse. OpenAPI 3.0 documents are not affected because document validation rejects arrays without items, and JSON request bodies use a different decoder path. This issue is fixed in version 0.143.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}