{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.6.1"
              },
              {
                "fixed": "8.5.2"
              },
              {
                "fixed": "8.4.5"
              },
              {
                "fixed": "8.3.7"
              },
              {
                "fixed": "8.2.7"
              },
              {
                "fixed": "8.1.7"
              },
              {
                "fixed": "8.0.8"
              },
              {
                "fixed": "7.10.14"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "bfd782302d20cbd672c785ac8c0d072d7cc6b0db"
            },
            {
              "fixed": "c80b0c096d4662c322ffb74d216a8c2232496d63"
            },
            {
              "fixed": "895d310c301e4c9a13c84c029bf1a60903019456"
            },
            {
              "fixed": "68e6101e48ccf8eb5e85abc4d8b6dfc7470c2ad3"
            },
            {
              "fixed": "60e9bc2ad6437a23c5e879113162cea4a8aad64a"
            },
            {
              "fixed": "2de78f6f04b15066b9e2e4aefac00f4566ffe6a2"
            },
            {
              "fixed": "dbd9bf8a914ed3480c8d86dd40068d685388d9b7"
            },
            {
              "fixed": "8300b3eb262f498021ed9df0ae453e83ec3b9bdb"
            }
          ],
          "repo": "https://github.com/rocketchat/rocket.chat",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "hackerone",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58066.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "8.7.0"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside any valid signature made by the trusted IdP certificate, and log in as an arbitrary user.",
  "id": "CVE-2026-58066",
  "modified": "2026-08-01T03:33:00.679702027Z",
  "published": "2026-07-30T06:03:45.178Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3827674"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58066.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58066"
    },
    {
      "type": "FIX",
      "url": "https://github.com/RocketChat/Rocket.Chat/pull/41233"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}