{"action":"Upgrade n8n-mcp to 2.47.14 or later.","affected":[{"fixed":"2.47.14","introduced":"2.47.4"}],"component":"n8n-mcp","cve_ids":["CVE-2026-42449"],"ecosystem":"npm","epss":0.00206,"exploited":false,"fixed_versions":["2.47.14"],"ghsa_id":"GHSA-56c3-vfp2-5qqj","id":"tcs_01M5KF2T31333SBY7B7GNGZAEY","modified_at":"2026-05-11T13:53:08.967275Z","published_at":"2026-04-30T18:12:54Z","references":["https://osv.dev/vulnerability/GHSA-56c3-vfp2-5qqj","https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-56c3-vfp2-5qqj","https://nvd.nist.gov/vuln/detail/CVE-2026-42449","https://github.com/czlonkowski/n8n-mcp/commit/9639f757853149f0cb16663cc8b6b6468f27a25f","https://github.com/czlonkowski/n8n-mcp"],"severity":{"label":"high","score":8.5},"sources":[{"source":"osv","source_id":"GHSA-56c3-vfp2-5qqj","url":"https://osv.dev/vulnerability/GHSA-56c3-vfp2-5qqj"}],"summary":"n8n-mcp's IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders"}