CVE-2026-110846

High

Description

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the waiting-webhook endpoint, which selects Send-and-Wait validation before normalising an alternate node reference form. Attackers holding an execution's resume token can approve waiting executions meant for others, running downstream actions under the workflow owner's credentials, potentially including command execution.

SeverityHigh

CVSS7.0

Exploit probability—

ProductN8n

PublishedOct 14, 2026

First seenOct 14, 2026

Weakness typeCWE-180CWE-180

How to fix

Update

n8n-io n8n2.41.4, 2.42.1 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-728h-pmr2-7cgh

Affected products

Product	Affected versions	Fixed in
n8n-io n8n	v < 2.41.4, 2.42.0 ≤ v < 2.42.1	2.41.4, 2.42.1

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