{"id":"CVE-2026-103758","revision":"09ada4f1a3ef47e2958bf268fd9166bc","records":[{"revision":"09ada4f1a3ef47e2958bf268fd9166bc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-103758","aliases":[],"title":"Obot 0.21.1 through 0.24.1 Authorization Bypass via /mcp-connect-composite/ Route","description":"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.","state":0,"publishedAt":"2026-10-01T10:42:26.638+00:00","modifiedAt":"2026-10-01T14:35:10.239+00:00","affected":[{"ecosystem":"Vendor product","name":"obot","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"obot-platform\",\n                    \"product\": \"obot\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:golang/github.com/obot-platform/obot\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.21.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"0.24.1\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.6,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1,"severity":"HIGH"}],"references":["https://github.com/obot-platform/obot/security/advisories/GHSA-6fwv-3h4c-37j9","https://www.vulncheck.com/advisories/obot-0.21.1-through-0.24.1-authorization-bypass-via-mcp-connect-composite-route"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103758","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-103758","identifiers":["CVE-2026-103758"]},"retained":false,"historicalAffected":[]}],"coverage":[]}