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CVE-2026-86082

n8n: Domain-Restriction Bypass via Unguarded Model-Search Endpoint in OpenAI Chat Model Node PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
n8n-io / n8naffected >= 2.38.0, < 2.38.2; affected >= 2.0.0, < 2.37.7; affected < 1.123.76

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.