{"cve":"CVE-2026-76905","nvd":{"published":"2026-08-21T21:17:06.320","modified":"2026-10-12T16:10:00.220","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-476"],"references":["https://github.com/getkin/kin-openapi/commit/1d0a337c9b1570fab283be8a04c8af6e43b9a22c","https://github.com/getkin/kin-openapi/releases/tag/v0.141.0","https://github.com/getkin/kin-openapi/security/advisories/GHSA-mmfr-pmjx-hw9w","https://github.com/getkin/kin-openapi/security/advisories/GHSA-mmfr-pmjx-hw9w"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-76905","score":0.00609,"percentile":0.48865,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-mmfr-pmjx-hw9w","url":"https://osv.dev/vulnerability/GHSA-mmfr-pmjx-hw9w","summary":"kin-openapi openai3filter: nil-pointer panic in ConvertErrors on malformed multipart/form-data body enables unauthenticated DoS","modified":"2026-09-10T03:51:14.378983908Z","packages":[{"ecosystem":"Go","name":"github.com/getkin/kin-openapi","purl":"pkg:golang/github.com/getkin/kin-openapi","ranges":[">=0.10.0 <0.141.0"],"fixed":["0.141.0"]}]},{"id":"GO-2026-6274","url":"https://osv.dev/vulnerability/GO-2026-6274","summary":"kin-openapi openai3filter: nil-pointer panic in ConvertErrors on malformed multipart/form-data body enables unauthenticated DoS in github.com/getkin/kin-openapi","modified":"2026-09-02T16:10:54.034711828Z","packages":[{"ecosystem":"Go","name":"github.com/getkin/kin-openapi","purl":"pkg:golang/github.com/getkin/kin-openapi","ranges":[">=0.10.0 <0.141.0"],"fixed":["0.141.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}