CVE-2026-110851

Medium

Description

n8n before 2.41.4 and 2.42.x before 2.42.1 contains an authorization bypass in the Agents create endpoint, which accepts a caller-supplied Agent ID, checks permissions only against the requested project, and updates an existing Agent without verifying which project owns it. An authenticated user with read-only Agent access to another project can supply an existing Agent ID to move that Agent into their own project and rewrite its name, schema and version.

SeverityMedium

CVSS6.1

Exploit probability—

ProductN8n

PublishedOct 14, 2026

First seenOct 14, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

n8n-io n8n2.41.4, 2.42.1 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-2r5r-xgvc-rj4p

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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