n8n versions before 2.39.6 and 2.40.0 before 2.40.1 fail to validate credential ownership during inline agent node-tool introspection. Attackers can reference arbitrary credential IDs to decrypt and exfiltrate plaintext secrets to attacker-controlled hosts without ownership verification.
Metrics
Affected Vendors & Products
References
History
Tue, 06 Oct 2026 01:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 01 Oct 2026 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | n8n versions before 2.39.6 and 2.40.0 before 2.40.1 fail to validate credential ownership during inline agent node-tool introspection. Attackers can reference arbitrary credential IDs to decrypt and exfiltrate plaintext secrets to attacker-controlled hosts without ownership verification. | |
| Title | n8n before 2.39.6 and 2.40.x before 2.40.1 Credential Disclosure via Node-Tool Introspection | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-639 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-01T10:41:53.491Z
Updated: 2026-10-06T00:05:36.140Z
Reserved: 2026-09-30T10:52:32.248Z
Link: CVE-2026-103246
Updated: 2026-10-06T00:05:31.729Z
Status : Deferred
Published: 2026-10-01T11:17:17.887
Modified: 2026-10-06T01:16:32.187
Link: CVE-2026-103246
No data.