{"id":"CVE-2026-61612","title":"CKAN MCP Server is a tool for querying CKAN open data portals","summary":"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…","severity":"medium","cvss":5.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-918"],"vendor":"ondata","product":"ckan-mcp-server","affected":["ckan-mcp-server @aborruso/ckan-mcp-server"],"patched":["@aborruso/ckan-mcp-server 0.4.108"],"published":"2026-09-21","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:25:27.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61612","references":[{"url":"https://github.com/advisories/GHSA-3xm7-qw7j-qc8v","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-g84h-j7jj-x32p","label":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/commit/bb7439b553b9f965adc3d43bcd415c42eebe2f40","label":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.108","label":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-798p-78g2-v556","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61612"},{"url":"https://github.com/advisories/GHSA-798p-78g2-v556"}],"tags":["nvd","cve.org","ghsa","npm"],"epss":0.00392,"epssPercentile":0.3319,"aliases":["GHSA-798p-78g2-v556"],"ecosystem":"npm","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T19:40:39.811302Z"},"ingestedAt":"2026-09-21T17:49:53.178Z","slug":"CVE-2026-61612","body":"## Overview\n\nCKAN 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-61612)\n\nAffected packages:\n\n- `@aborruso/ckan-mcp-server <= 0.4.107`\n\nPatched in:\n\n- `@aborruso/ckan-mcp-server 0.4.108`\n\nSource: https://github.com/advisories/GHSA-798p-78g2-v556","depth":"sunlit","depthScore":31,"depthScoreParts":{"impact":31.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}