CVE-2026-86080
Published:September 08, 2026
Updated:September 22, 2026
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the GitHub Trigger generated a webhook secret but discarded it when GitHub returned HTTP 422 and the node reused an existing webhook. Workflow static data then retained webhookId without webhookSecret, and X-Hub-Signature-256 verification accepted deliveries without a stored secret. The affected logic includes packages/nodes-base/nodes/Github/GithubTriggerHelpers.ts and the 422 webhook reuse path. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@0.2.0 <n8n@1.123.76Fix Suggestion:
Update to version n8n@1.123.76https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.38.0 <n8n@2.38.2Fix Suggestion:
Update to version n8n@2.38.2https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.0.0-rc.0 <n8n@2.37.7Fix Suggestion:
Update to version n8n@2.37.7n8n (NPM):
Affected version(s) >=2.38.0 <2.38.2Fix Suggestion:
Update to version 2.38.2n8n (NPM):
Affected version(s) >=2.0.0-rc.0 <2.37.7Fix Suggestion:
Update to version 2.37.7n8n (NPM):
Affected version(s) >=0.0.1 <1.123.76Fix Suggestion:
Update to version 1.123.76n8n (NPM):
Affected version(s) >=2.0.0 <2.37.7Fix Suggestion:
Update to version 2.37.7Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Verification of Cryptographic Signature
EPSS
Base Score:
0.16