n8n before 1.123.89 contains an insufficient isolation vulnerability in workflow expression evaluation that allows authenticated users to escape the sandbox. Attackers with permission to create or modify workflows can craft expressions referencing unexpected JavaScript properties to execute arbitrary code on the n8n host.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
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References
History
Fri, 13 Nov 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | n8n before 1.123.89 contains an insufficient isolation vulnerability in workflow expression evaluation that allows authenticated users to escape the sandbox. Attackers with permission to create or modify workflows can craft expressions referencing unexpected JavaScript properties to execute arbitrary code on the n8n host. | |
| Title | n8n before 1.123.89 RCE via Workflow Expression Evaluation Sandbox Escape | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-94 | |
| 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: 2026-11-13T09:35:54.388Z
Reserved: 2026-11-10T21:30:16.910Z
Link: CVE-2026-126391
No data.
Status : Deferred
Published: 2026-11-13T10:17:42.823
Modified: 2026-11-13T10:17:42.970
Link: CVE-2026-126391
No data.
OpenCVE Enrichment
No data.
Weaknesses