Security advisory

{
  "id": "8c3139864fbf2c35757bea48154d78f98483c6ab246453bb2a8703bddcfba489",
  "url": "https://osv.dev/vulnerability/CVE-2020-10807",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-10807",
    "summary": "auth_svc in Caldera before 2.6.5 allows authentication bypass (for REST API requests) via a forged \"localhost\" string in the HTTP Host header.",
    "evidence": "osv:CVE-2020-10807",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-10807",
      "aliases": [
        "CVE-2020-10807"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/caldera",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "730d9c8fb2864536003887de472fcd8b980ac9df"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mitre:caldera:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.6.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "730d9c8fb2864536003887de472fcd8b980ac9df"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.6.5"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.6.4",
            "2.6.3",
            "2.6.2",
            "2.6.1",
            "2.6.0",
            "2.3.1",
            "2.3.0",
            "2.1.0",
            "2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10807.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:33.684083056Z",
      "provider": "osv",
      "references": [
        "https://github.com/mitre/caldera/compare/2.6.4...2.6.5",
        "https://github.com/mitre/caldera/issues/1405",
        "https://github.com/mitre/caldera/releases/tag/2.6.5",
        "https://github.com/mitre/caldera/pull/1407"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-10807",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382576,
  "published_at": "2020-03-22T16:15:12.417+00:00"
}