CVE-2026-86993 n8n: Log Streaming Event Destinations Decrypt Generic-Auth Credentials Without Ownership Check
A user with specific log streaming scopes can decrypt and exfiltrate credentials from other projects due to missing ownership checks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-86993?
CVE-2026-86993 is a medium-severity missing authorization vulnerability in N8n N8n, published on 8 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, a Log Streaming event destination could reference a generic HTTP credential and decrypt whichever credential ID it named without an ownership check. A user with a custom global role carrying Log Streaming scopes could select a credential belonging to another project and send its decrypted secret to an attacker-controlled endpoint. The affected authorization boundary is packages/cli/src/modules/log-streaming.ee/destinations/destination-credentials-access.ts and the credential:read scope. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
Weakness: CWE-862
Which versions are affected by CVE-2026-86993?
6 open source packages ship an affected version, including n8n. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
n8n npm | All versions | 1.123.76 |
n8n npm | All versions | 1.123.76 |
n8n npm | From 2.0.0 | 2.37.7 |
n8n npm | From 2.0.0 | 2.37.7 |
n8n npm | From 2.38.0 | 2.38.2 |
n8n npm | From 2.38.0 | 2.38.2 |
Products include N8n N8n.
How do I fix CVE-2026-86993?
Upgrade n8n to a fixed version for your release line: 1.123.76, 2.37.7 or 2.38.2.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86993 being exploited?
There is no known exploitation of CVE-2026-86993 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-pq6c-vh67-xpm3, MINI-f6j2-x4x2-r9g6.