CVE-2026-86082

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

Published: Sep 8, 2026Updated: Sep 14, 2026 Sources: CVE List NVDCWE-918

6.5MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-918

Affected Products

n8n-io

commercial·DEaka n8n

n8nOn-premWeb App

Cloud & SaaS / container-orchestration

n8n

oss-project

n8nSaaSWeb App

Cloud & SaaS / saas-application

Exploitability

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://github.com/n8n-io/n8n/security/advisories/GHSA-34ff-336r-5q23

github.com

https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76

github.com

https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7

github.com

and 1 more references View all →

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