{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.21.1"
              },
              {
                "last_affected": "0.24.1"
              },
              {
                "fixed": "0.24.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "2a2ec3f23ac564b2e2fab6b09fdef4ecd05fd496"
            },
            {
              "fixed": "9903b2d1861952a06b3cc9d0a37b08f23e237f86"
            }
          ],
          "repo": "https://github.com/obot-platform/obot",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6fwv-3h4c-37j9"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103758.json"
  },
  "details": "Obot 0.21.1 through 0.24.1 contains an authorization bypass vulnerability that allows authenticated users to reach MCP servers because the checkUI deny list omits the /mcp-connect-composite/ route. Basic-role users with a composite MCP ID can proxy requests through mcpGateway.Proxy to invoke tools on MCP servers restricted by Access Control Rules.",
  "id": "CVE-2026-103758",
  "modified": "2026-10-03T03:30:56.180167382Z",
  "published": "2026-10-01T10:42:26.638Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103758.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/obot-platform/obot/security/advisories/GHSA-6fwv-3h4c-37j9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103758"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/obot-0.21.1-through-0.24.1-authorization-bypass-via-mcp-connect-composite-route"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Obot 0.21.1 through 0.24.1 Authorization Bypass via /mcp-connect-composite/ Route"
}