{"id":"UBUNTU-CVE-2026-76905","details":"kin-openapi is a Go project for handling OpenAPI files. From 0.10.0 until 0.141.0, openapi3filter.convertParseError in openapi3filter/validation_error_encoder.go dereferences e.Parameter.In without checking whether e.Parameter is nil. A malformed non-string scalar field in a multipart/form-data request body produces a nested ParseError with a nil RequestError.Parameter, and applications that render the validation error through openapi3filter.ConvertErrors or ValidationErrorEncoder panic. An unauthenticated client can repeatedly send such requests to deny service when the application lacks a recovery boundary. JSON request bodies and applications that do not use these error-rendering helpers are not affected. This issue is fixed in version 0.141.0.","modified":"2026-09-02T19:36:50.099759776Z","published":"2026-08-21T21:17:00Z","upstream":["CVE-2026-76905"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-76905"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-76905"},{"type":"REPORT","url":"https://github.com/getkin/kin-openapi/security/advisories/GHSA-mmfr-pmjx-hw9w"}],"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_version":"0.85.0-1","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-2026-76905.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_version":"0.123.0-1","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-2026-76905.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_version":"0.124.0-1","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-2026-76905.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"}]}