CVE-2026-65589 n8n before 1.123.64 Credential Exposure via LLM Node Execution Data
Authenticated users can read plaintext API keys and secrets from LLM node execution data due to improper masking of custom HTTP headers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-65589?
CVE-2026-65589 is a medium-severity vulnerability in N8n N8n, published on 22 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
n8n versions before 1.123.64 fail to properly mask custom HTTP header credentials in LLM sub-node execution data, writing plaintext API keys and secrets to workflow execution records. Authenticated users with access to execution data can read exposed header values and credentials that persist in the database and can be exported.
Weakness: CWE-532
Which versions are affected by CVE-2026-65589?
6 open source packages ship an affected version, including n8n. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
n8n npm | All versions | 1.123.64 |
n8n npm | All versions | 1.123.64 |
n8n npm | From 2.0.0-rc.0 | 2.29.8 |
n8n npm | From 2.0.0-rc.0 | 2.29.8 |
n8n npm | From 2.30.0 | 2.30.1 |
n8n npm | From 2.30.0 | 2.30.1 |
Products include N8n N8n.
How do I fix CVE-2026-65589?
Upgrade n8n to a fixed version for your release line: 1.123.64, 2.29.8 or 2.30.1.
Is CVE-2026-65589 being exploited?
There is no known exploitation of CVE-2026-65589 in the wild and no public exploit code.
Other vulnerabilities in N8n N8n
- CVE-2025-68613 n8n Improper Control of Dynamically-Managed Code Resources
- CVE-2026-21877 n8n is vulnerable to Remote Code Execution via Arbitrary File Write
- CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling
- CVE-2026-1470 n8n Unsafe Workflow Expression Evaluation Allows Remote Code Execution
- CVE-2025-68668 n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node
Sources
Also known as GHSA-89gh-3pgc-v5h2, MINI-w5qh-65c6-vc3c.