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…
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 (https://help.splunk.com
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Splunk, Anthropic
- Product
- Splunk Enterprise / SOAR, Claude, AI / LLM tooling
- CVSS
- 5.3
- Exposure class
- Network management, AI infrastructure
Why it ranks 8 (Routine)
- CVSS 5.3 medium
- Product class: network management, AI infrastructure
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-76286 on this site · NVD · CVE.org · Vulnpedia