{"id":"CVE-2026-61612","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-61612","generatedAt":"2026-10-28T00:18:42.091Z","title":"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.","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.","published":"2026-09-21T18:17:09.000Z","lastModified":"2026-09-24T21:25:27.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N"},"cwe":["CWE-918"],"affected":[],"epss":{"score":0.00392,"percentile":0.33116,"date":"2026-10-26","history":[{"date":"2026-09-22","score":0.00221,"percentile":0.12954}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T18:17:09.000Z","detail":{"score":"5.7","severity":"MEDIUM","publishedAt":"2026-09-21T18:17:09.073Z"},"summary":"New CVE, medium severity (CVSS 5.7)."}],"references":[{"url":"https://github.com/advisories/GHSA-3xm7-qw7j-qc8v","source":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-g84h-j7jj-x32p","source":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/commit/bb7439b553b9f965adc3d43bcd415c42eebe2f40","source":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.108","source":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-798p-78g2-v556","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-61612","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}