CVE-2026-42449
1 advisory.
npm/n8n-mcp CVE-2026-42449: high 8.5, EPSS 0.33%
n8n-mcp's IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders
Action: Upgrade n8n-mcp to 2.47.14 or later.
npm i n8n-mcp@2.47.14Affected
| introduced | fixed | last affected |
|---|---|---|
| 2.47.4 | 2.47.14 | - |
Fixed versions
| 2.47.14 |
Sources
- osv: 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
CVE-2026-42449 · published · modified · JSON