EUVD-2026-22935
GHSA-6qfc-m9fp-c5rm
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionCVE.org
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 and Connecting to MCP Server and Admin settings in the Splunk documentation for more information.
AnalysisAI
Splunk MCP Server below version 1.0.3 logs session and authorization tokens in clear text within the _internal index, exposing them to any user with access to that index or the high-privilege mcp_tool_admin capability. A remote attacker with high privileges can view these tokens via the Splunk search interface, enabling session hijacking and impersonation of other users. No public exploit is identified at time of analysis, and the EPSS score of 0.04% indicates very low near-term exploitation probability.
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