n8n before 1.123.83, 2.41.4, and 2.42.1 Prototype Pollution via AI Workflow Builder Connection Merge
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| n8n-io | n8n | unaffected |
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No data.
No data.
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| N8n | N8n |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.312% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Description | n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a prototype pollution vulnerability in the AI workflow builder, which merges workflow connections using node names as object members without checking for reserved keys. Authenticated users can create nodes named __proto__ through the API and invoke the connect-nodes operation to pollute the global object prototype, disrupting the instance until restart. | |
| Title | n8n before 1.123.83, 2.41.4, and 2.42.1 Prototype Pollution via AI Workflow Builder Connection Merge | |
| First Time appeared |
N8n
N8n n8n |
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| Weaknesses | CWE-1321 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
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| References |
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| Metrics |
cvssV4_0
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