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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 01 Oct 2026 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | n8n before 1.123.80, 2.39.6, and 2.40.1 Package Install Validation Bypass via PubSub | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-862 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-01T10:41:57.207Z
Reserved: 2026-09-30T10:52:32.249Z
Link: CVE-2026-103251
No data.
Status : Deferred
Published: 2026-10-01T11:17:18.973
Modified: 2026-10-01T11:17:19.103
Link: CVE-2026-103251
No data.
OpenCVE Enrichment
Updated: 2026-10-01T14:45:09Z
Weaknesses