Security advisory

{
  "id": "c523752088c879a370d491b14eaca110d1e7f12bafacc772d840563b85fad6c4",
  "url": "https://osv.dev/vulnerability/CVE-2020-36599",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36599",
    "summary": "lib/omniauth/failure_endpoint.rb in OmniAuth before 1.9.2 (and before 2.0) does not escape the message_key value.",
    "evidence": "osv:CVE-2020-36599",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-36599",
      "aliases": [
        "CVE-2020-36599",
        "GHSA-pm55-qfxr-h247"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/omniauth/omniauth",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "74526f0f12133048b62157f90b2783ca95ba8c98"
                },
                {
                  "introduced": "97714aa6a5da8e3b7e76e52cccd82110ab204adf"
                },
                {
                  "last_affected": "97714aa6a5da8e3b7e76e52cccd82110ab204adf"
                },
                {
                  "fixed": "43a396f181ef7d0ed2ec8291c939c95e3ed3ff00"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:omniauth:omniauth:*:*:*:*:*:-:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.9.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:omniauth:omniauth:2.0.0:pre.rc1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0-pre\\.rc1"
                      },
                      {
                        "last_affected": "2.0.0-pre\\.rc1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "43a396f181ef7d0ed2ec8291c939c95e3ed3ff00"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.0-pre\\.rc1",
            "v1.9.1",
            "v2.0.0-rc1",
            "v1.9.0",
            "v1.8.1",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.1",
            "v1.6.0",
            "v1.5.0",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.4",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v1.0.0.rc2",
            "v1.0.0.rc1",
            "v1.0.0.beta1",
            "v1.0.0.pr2",
            "v1.0.0.pr1",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.2.0.beta5",
            "v0.2.0.beta4",
            "v0.1.6",
            "v0.2.0.beta2",
            "v0.2.0.beta1",
            "v0.1.5",
            "v0.0.4",
            "v0.0.3",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36599.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:21.276897235Z",
      "provider": "osv",
      "references": [
        "https://rubygems.org/gems/omniauth/versions/1.9.2",
        "https://github.com/omniauth/omniauth/commit/43a396f181ef7d0ed2ec8291c939c95e3ed3ff00#diff-575abda9deb9b1a77bf534e898a923029b9a61e991d626db88dc6e8b34260aa2"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36599",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385146,
  "published_at": "2022-08-18T23:15:08.187+00:00"
}