CVE-2026-103246 (GCVE-0-2026-103246)
Vulnerability from cvelistv5
Published
2026-10-01 10:41
Modified
2026-10-06 00:05
Severity ?
8.3 (High) - 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
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
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.
References
Impacted products
Vendor Product Version
n8n-io n8n Version: 0   ≤
Version: 2.40.0   ≤
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