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@n8n/n8n-nodes-langchain@1.122.60

  • latest version

    2.45.4

  • latest non vulnerable version

    3.0.1

  • first published

    3 years ago

  • latest version published

    21 hours ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the @n8n/n8n-nodes-langchain package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • M
    Server-side Request Forgery (SSRF)

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    Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the MCP Client. An attacker can access internal or otherwise restricted network resources by supplying crafted endpoints, causing the server to connect to unintended hosts and return sensitive responses through workflow execution.

    Note: This is only exploitable if SSRF protection is enabled and the attacker has permissions to create or edit workflows.

    How to fix Server-side Request Forgery (SSRF)?

    Upgrade @n8n/n8n-nodes-langchain to version 2.31.3, 2.32.1 or higher.

    <2.31.3>=2.32.0 <2.32.1
    • M
    Cross-site Scripting (XSS)

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    Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the ChatTrigger template rendering in ChatTrigger/templates.ts. An authenticated user who can create or edit workflows can inject malicious JavaScript by supplying crafted Custom CSS in a Chat Trigger node, and anyone visiting the public chat page will execute it. The flaw allows the attacker to persist a script in the workflow configuration and have it run in other users’ browsers at the chat URL, exposing session data or enabling actions in the victim’s browser under their identity.

    Notes

    • The vulnerable flow is the HTML template used by the public chat page, so the stored payload runs wherever that chat URL is rendered rather than only inside the workflow editor.
    • The issue is gated by workflow edit/create permissions: only users who can modify workflows can place the malicious Custom CSS into the Chat Trigger node.

    Workarounds

    • Limit workflow creation and editing permissions to fully trusted users only, which reduces the chance that an untrusted authenticated user can store malicious Custom CSS in a Chat Trigger workflow.
    • Disable the Chat Trigger node by adding @n8n/n8n-nodes-langchain.chatTrigger to the NODES_EXCLUDE environment variable, which prevents the vulnerable public chat page from being exposed.

    How to fix Cross-site Scripting (XSS)?

    Upgrade @n8n/n8n-nodes-langchain to version 1.122.19, 2.13.1, 2.14.1 or higher.

    <1.122.19>=2.0.0-rc.0 <2.13.1<2.14.1
    • M
    Improper Neutralization of Input Used for LLM Prompting

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    Affected versions of this package are vulnerable to Improper Neutralization of Input Used for LLM Prompting via the Guardrail node. An attacker can modify workflow input to circumvent intended restrictions by crafting specific input values.

    How to fix Improper Neutralization of Input Used for LLM Prompting?

    Upgrade @n8n/n8n-nodes-langchain to version 2.10.0 or higher.

    <2.10.0
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