CVE-2026-86080

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76	Release Notes
https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7	Release Notes
https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2	Release Notes
https://github.com/n8n-io/n8n/security/advisories/GHSA-5m98-cgcr-xx3q	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*

History

No history.

Information

Published : 2026-09-08 22:19

Updated : 2026-09-11 18:21

NVD link : CVE-2026-86080

Mitre link : CVE-2026-86080

CVE.ORG link : CVE-2026-86080

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-347

Improper Verification of Cryptographic Signature

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