Vulnerability · Published Oct 14, 2026 · Assigned by VulnCheck

CVE-2026-110851n8n before 2.41.4 and 2.42.1 Cross-Project Agent Ownership Transfer via Agents Create Endpoint

Medium 6.1

In plain English

A medium-severity authorization bypass via user-controlled key in n8n from n8n-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 4.0)6.1Medium

Exploit odds (30 days)0.2%top 86.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n8n-io	n8n	0 – before 2.41.42.42.0 – before 2.42.1

Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:N

References

GitHub Security Advisory (GHSA-2r5r-xgvc-rj4p) vendor-advisory
VulnCheck Advisory: n8n before 2.41.4 and 2.42.1 Cross-Project Agent Ownership Transfer via Agents Create Endpoint third-party-advisory