Is CVE-2026-103246 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-103246?

CVE-2026-103246 has a CVSS v3 severity of HIGH (7.7).

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CVE-2026-103246

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.