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CVE-2026-103246highCWE-639

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

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.3epss 0.3%
exploitation probability
0.3%top 84% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Affected products
n8n-io · n8n