{"id":"UBUNTU-CVE-2026-97394","details":"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-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.","modified":"2026-10-17T13:01:20.158736247Z","published":"2026-10-16T00:00:00Z","upstream":["CVE-2026-97394"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-97394"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-97394"},{"type":"REPORT","url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-p6wj-qrr4-pgh5"},{"type":"REPORT","url":"https://github.com/getkin/kin-openapi/commit/30e292371a89ca6d1f91a9553e0aa518b49f838d"},{"type":"REPORT","url":"https://github.com/getkin/kin-openapi/commit/30e292371a89ca6d1f91a9553e0aa518b49f838d"},{"type":"REPORT","url":"https://github.com/getkin/kin-openapi/releases/tag/v0.143.0"}],"affected":[{"package":{"name":"golang-github-getkin-kin-openapi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.32.0-2","0.80.0-1","0.85.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-getkin-kin-openapi-dev","binary_version":"0.85.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97394.json"}},{"package":{"name":"golang-github-getkin-kin-openapi","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.117.0-1","0.120.0-1","0.122.0-3","0.123.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-getkin-kin-openapi-dev","binary_version":"0.123.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97394.json"}},{"package":{"name":"golang-github-getkin-kin-openapi","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.124.0-1","0.135.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.135.0-1","binary_name":"golang-github-getkin-kin-openapi-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97394.json"}},{"package":{"name":"golang-github-getkin-kin-openapi","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.124.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-getkin-kin-openapi-dev","binary_version":"0.124.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97394.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}