{"cve":"CVE-2026-61612","nvd":{"published":"2026-09-21T18:17:09.073","modified":"2026-09-24T21:25:27.050","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":["CWE-918"],"references":["https://github.com/advisories/GHSA-3xm7-qw7j-qc8v","https://github.com/advisories/GHSA-g84h-j7jj-x32p","https://github.com/ondata/ckan-mcp-server/commit/bb7439b553b9f965adc3d43bcd415c42eebe2f40","https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.108","https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-798p-78g2-v556"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-61612","score":0.00392,"percentile":0.33383,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-798p-78g2-v556","url":"https://osv.dev/vulnerability/GHSA-798p-78g2-v556","summary":"@aborruso/ckan-mcp-server has SSRF via DNS-name → internal IP — incomplete fix of CVE-2026-53509","modified":"2026-09-23T03:56:42.719306174Z","packages":[{"ecosystem":"npm","name":"@aborruso/ckan-mcp-server","purl":"pkg:npm/%40aborruso/ckan-mcp-server","ranges":["<0.4.108"],"fixed":["0.4.108"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}