CVE-2026-65593: n8n before 1.123.64, 2.29.8, and 2.30.1 SSRF via Dynamic Node Parameters

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-22 · updated 2026-10-29
Weakness: CWE-918

Description

n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a server-side request forgery vulnerability in the dynamic-node-parameters endpoints that lack authorization scopes. Authenticated attackers can supply absolute URLs in routing configuration to override baseURL restrictions and make the n8n server issue HTTP requests to arbitrary internal targets when SSRF protection is disabled.

Affected products

n8n-io n8n: before 1.123.64; from 2.0.0 before 2.29.8; 2.30.0 (and their updates) — fixed in 1.123.64, 2.29.8
n8n-io n8n: before 1.123.64 — fixed in 1.123.64

How to fix

Upgrade to a fixed version: n8n-io n8n 1.123.64, 2.29.8; n8n-io n8n 1.123.64. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2026-65593 or the next vulnerability affects your stack