CVE-2026-59253 n8n - Improper Authorization in Workflow Assignment to Folders

What is CVE-2026-59253?

CVE-2026-59253 is a medium-severity missing authorization vulnerability in N8n N8n, published on 8 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

n8n before 2.28.0 contains an improper authorization vulnerability allowing authenticated users to assign workflows to folders in other projects. Attackers can bypass project and folder authorization boundaries by supplying crafted request payloads during workflow creation, causing logical integrity violations in target project folder structures.

Weakness: CWE-639

Which versions are affected by CVE-2026-59253?

2 open source packages ship an affected version, including n8n. It affects 1 product.

Products include N8n N8n.

How do I fix CVE-2026-59253?

Upgrade n8n to 2.28.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-59253 being exploited?

There is no known exploitation of CVE-2026-59253 in the wild and no public exploit code.

Other vulnerabilities in N8n N8n

• CVE-2025-68613 n8n Improper Control of Dynamically-Managed Code Resources Exploited Critical 10.0
• CVE-2026-21877 n8n is vulnerable to Remote Code Execution via Arbitrary File Write Critical 10.0
• CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling Critical 10.0
• CVE-2026-1470 n8n Unsafe Workflow Expression Evaluation Allows Remote Code Execution Critical 9.9
• CVE-2025-68668 n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node Critical 9.9

All N8n N8n vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2xgm-wc4g-5jvg, MINI-54rx-7r8f-xhw7.