CVE-2026-103251

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the community package installation handler for queue mode deployments. Attackers with Redis write access can bypass name validation, permission checks, checksum verification, and npm safety checks to install arbitrary npm packages across all cluster instances without authentication.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-fmmv-p585-7c8x
https://www.vulncheck.com/advisories/n8n-before-1.123.80-2.39.6-and-2.40.1-package-install-validation-bypass-via-pubsub

Configurations

No configuration.

History

01 Oct 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 11:17

Updated : 2026-10-01 20:17

NVD link : CVE-2026-103251

Mitre link : CVE-2026-103251

CVE.ORG link : CVE-2026-103251

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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