{"id":"CVE-2026-61612","revision":"5a2aa644788c403f86dfe84aa6b1646d","records":[{"revision":"5a2aa644788c403f86dfe84aa6b1646d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-61612","aliases":[],"title":"@aborruso/ckan-mcp-server has SSRF via DNS-name → internal IP — incomplete fix of CVE-2026-53509","description":"CKAN MCP Server is a tool for querying CKAN open data portals. Prior to version 0.4.108, the SSRF guard `validateServerUrl` (added for CVE-2026-33060, extended for CVE-2026-53509) validates only the hostname string and never resolves DNS. Any caller-supplied `server_url` whose hostname *resolves* to an internal address passes the guard, so the server issues requests to loopback and cloud metadata (`169.254.169.254`). This is a third bypass of the same guard, and it reaches IMDS — strictly more than CVE-2026-53509, which only reached loopback. Version 0.4.108 contains an updated fix.","state":0,"publishedAt":"2026-09-21T17:37:17.03+00:00","modifiedAt":"2026-09-21T20:44:57.5+00:00","affected":[{"ecosystem":"Vendor product","name":"ckan-mcp-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ondata\",\n                    \"product\": \"ckan-mcp-server\",\n                    \"versions\": [\n                        {\n                            \"version\": \"@aborruso/ckan-mcp-server\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","score":5.7,"severity":"MEDIUM"}],"references":["https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-798p-78g2-v556","https://github.com/ondata/ckan-mcp-server/commit/bb7439b553b9f965adc3d43bcd415c42eebe2f40","https://github.com/advisories/GHSA-3xm7-qw7j-qc8v","https://github.com/advisories/GHSA-g84h-j7jj-x32p","https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.108"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-61612","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-61612","identifiers":["CVE-2026-61612"]},"retained":false,"historicalAffected":[]}],"coverage":[]}