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CVE PROGRAM SOURCE RECORD8.3 High

CVE-2026-103246

n8n before 2.39.6 and 2.40.x before 2.40.1 Credential Disclosure via Node-Tool Introspection

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n8n-io n8n

Default version status: unaffected

  • 0 to < 2.39.6affected
  • 2.40.0 to < 2.40.1affected
pkg:npm/n8n

References