Cloudanix VulnDB

CVE-2025-68949

Medium · 5.3

n8n: Webhook Node IP `Whitelist` Bypass via Partial String Matching

CVSS

5.3

EPSS

0.3%

Published

Jan 13, 2026

CISA due date

—

The record

The Webhook node’s IP `whitelist` validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured `whitelist` entry as a substring. This issue affected instances where workflow editors relied on IP-based access controls to restrict webhook access. Both IPv4 and IPv6 addresses were impacted. An attacker with a non-`whitelist`ed IP could bypass restrictions if their IP shared a partial prefix with a trusted address, undermining the intended security boundary.

Affected packages

Ecosystem Package Introduced Fixed
npm n8n 1.36.0 2.2.0

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