CVE-2026-20205: Splunk MCP Server, изтичане на данни

Описание

Оригинално описание

In Splunk MCP Server app versions below 1.0.3 , a user who holds a role with access to the Splunk `_internal` index or possesses the high-privilege capability `mcp_tool_admin` could view users session and authorization tokens in clear text.<br><br>The vulnerability would require either local access to the log files or administrative access to internal indexes, which by default only the admin role receives. <br><br>Review roles and capabilities on your instance and restrict internal index access to administrator-level roles. See [Define roles on the Splunk platform with capabilities](https://docs.splunk.com/Documentation/Splunk/latest/Security/Rolesandcapabilities) and [Connecting to MCP Server and Admin settings](https://help.splunk.com/en/splunk-enterprise/mcp-server-for-splunk-platform/connecting-to-mcp-server-and-admin-settings) in the Splunk documentation for more information.

Засегнати продукти

• Splunk Splunk MCP Server: 1.0 преди 1.0.3

Вид слабост

• CWE-532 Insertion of Sensitive Information into Log File

История

Други уязвимости в Splunk Splunk MCP Server

• 5.3CVE-2026-76286
• 5.4CVE-2025-20381

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-20205
• https://nvd.nist.gov/vuln/detail/CVE-2026-20205
• https://advisory.splunk.com/advisories/SVD-2026-0407