CVE-2026-85171 n8n before 1.123.73 Credential Exposure via Error Logging
Authenticated users can read plaintext credentials from execution logs in n8n due to improper error handling in specific nodes.
- 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-2026-85171?
CVE-2026-85171 is a high-severity vulnerability in N8n N8n, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
n8n before 1.123.73, 2.35.4, and 2.36.2 contains a credential exposure vulnerability in the Strapi, SeaTable, and Mailcheck nodes. These nodes send their decrypted credentials to the authentication endpoint via the raw legacy HTTP helper outside any error handling, causing the plaintext secret to be persisted in execution error data. Any authenticated user can read the plaintext secret from their own execution through the REST API, bypassing the blank-value redaction enforced by the credentials API.
Weakness: CWE-532
Which versions are affected by CVE-2026-85171?
It affects 1 product.
Products include N8n N8n.
How do I fix CVE-2026-85171?
Upgrade to a fixed version.
Is CVE-2026-85171 being exploited?
There is no known exploitation of CVE-2026-85171 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-jjvm-mg9c-jcjc, GHSA-vrv8-j27g-g7cr, MINI-c58q-j7gx-rw72.