CVE-2026-118676 n8n - Authorization Bypass

n8n < 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass caused by omission of default node parameters in workflows, letting member users access unauthorized credentials and send decrypted values to attacker destinations, exploit requires member user privileges.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Information Disclosure, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-863

Vendor fix

Update to version 1.123.85, 2.43.5, 2.44.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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