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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-76286

CVE-2026-76286: 1 tracked advisory record across Splunk. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Splunk

1 advisory
  • Advisory severityMedium5.3

    Medium [CVE-2026-76286] Server-Side Request Forgery (SSRF) through Custom API Tools in Splunk MCP Server

    CVE-2026-76286Source published Source updated

    In Splunk MCP Server versions below 1.2.1, Splunk MCP Server could send the Splunk platform authentication token of a user who runs a custom Application Programming Interface (API) tool to the URL configured for that tool. If another user controls that URL, they could capture the token and use it to access data and perform actions as the user who ran the tool. Successful exploitation requires a user who holds a role that contains the mcp_tool_execute capability to run a custom API tool configured by another user. For more information see Configure the Splunk MCP Server ( ) and Managing custom tools in Splunk MCP Server ( ) in the Splunk documentation.

    Affected products in this advisory
    • Splunk MCP Server
    Source-reported affected versions
    • Splunk MCP Server 1.2 before 1.2.1
    Source-reported fixed versions
    • 1.2.1
    Mitigation guidance
    • For more information see Configure the Splunk MCP Server (https://help.splunk.com/en/splunk-enterprise/mcp-server-for-splunk-platform/1.2/configure-the-splunk-mcp-server) and Managing custom tools in Splunk MCP Server (https://help.splunk.com/en/splunk-enterprise/mcp-server-for-splunk-platform/1.2/managing-custom-tools-in-splunk-mcp-server) in the Splunk documentation.
    Full advisory and evidenceOpen source bulletin

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