[ CVE-2026-103246 · Published 1 Oct 2026 ]
Vulnerability in n8n-io n8n
CVSS 7.7
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.