golang-github-getkin-kin-openapi — security advisory

{
  "id": "35f5b8b8d933cba57d7a8b98462f1cf3902752480d6083e6f7749bc96b710b6f",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-73501",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-73501",
    "summary": "kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load() in openapi3filter/validation_handler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI security requirement to be satisfied for unauthenticated requests when an application relies on ValidationHandler as its enforcement middleware. The no-op callback prevents the fail-closed ErrAuthenticationServiceMissing path from being reached and forwards the request to protected handlers that may require an API key, OAuth token, or another security scheme. This issue is fixed in version 0.144.0.",
    "evidence": "osv:DEBIAN-CVE-2026-73501",
    "products": [
      {
        "name": {
          "value": "golang-github-getkin-kin-openapi",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.110.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.117.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.118.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.120.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.122.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.122.0-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.122.0-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.123.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.124.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.135.0-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "golang-github-getkin-kin-openapi",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.124.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.135.0-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "golang-github-getkin-kin-openapi",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.124.0-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.135.0-1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2026-73501",
      "aliases": [
        "DEBIAN-CVE-2026-73501"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-github-getkin-kin-openapi",
            "purl": "pkg:deb/debian/golang-github-getkin-kin-openapi?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "0.110.0-1",
            "0.117.0-1",
            "0.118.0-1",
            "0.120.0-1",
            "0.122.0-1",
            "0.122.0-2",
            "0.122.0-3",
            "0.123.0-1",
            "0.124.0-1",
            "0.135.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73501.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-github-getkin-kin-openapi",
            "purl": "pkg:deb/debian/golang-github-getkin-kin-openapi?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "0.124.0-1",
            "0.135.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73501.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-github-getkin-kin-openapi",
            "purl": "pkg:deb/debian/golang-github-getkin-kin-openapi?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "0.124.0-1",
            "0.135.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73501.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-25T09:47:34.820271993Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-73501"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-73501"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-73501",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 445290,
  "published_at": "2026-08-12T22:17:17.443+00:00"
}