CVE-2026-86082

Medium

Description

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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductN8n
PublishedSep 8, 2026
First seenSep 8, 2026

How to fix

Update
  • n8n n8n1.123.76, 2.37.7, 2.38.2 or later
  • n8n1.123.76, 2.38.2, 2.37.7 or later

Affected products

ProductAffected versionsFixed in
n8n n8nv < 1.123.76, 2.0.0 ≤ v < 2.37.7, 2.38.0 ≤ v < 2.38.21.123.76, 2.37.7, 2.38.2
n8nnpmv < 1.123.76, 2.38.0 ≤ v < 2.38.2, 2.0.0 ≤ v < 2.37.71.123.76, 2.38.2, 2.37.7

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CVE-2026-86082 · N8n · Dark Radar