CVE-2026-86082
n8n: Domain-Restriction Bypass via Unguarded Model-Search Endpoint in OpenAI Chat Model Node
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the OpenAI Chat Model node enforced credential allowed-domain restrictions for normal calls but not for the model-search dropdown. A workflow editor could set options.baseURL to an arbitrary host and make the searchModels path send the openAiApi credential there. The affected implementation is packages/@n8n/nodes-langchain/nodes/llms/LMChatOpenAi/methods/loadModels.ts, which omitted assertOpenAiCredentialAllowsUrl. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
| CWE | CWE-918 |
| Vendor | n8n-io |
| Product | n8n |
| Published | Sep 8, 2026 |
| Last Updated | Sep 14, 2026 |
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Affected Versions
n8n-io / n8n
>= 2.38.0, < 2.38.2 >= 2.0.0, < 2.37.7 < 1.123.76
References
github.com: https://github.com/n8n-io/n8n/security/advisories/GHSA-34ff-336r-5q23 github.com: https://github.com/n8n-io/n8n/releases/tag/[email protected] github.com: https://github.com/n8n-io/n8n/releases/tag/[email protected] github.com: https://github.com/n8n-io/n8n/releases/tag/[email protected]