What is CVE-2026-20205?

CVE-2026-20205 is a high-severity vulnerability in Splunk Mcp Server, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.2/10. Published 2026-04-15.

How severe is CVE-2026-20205?

High severity. CVSS v3 base score is 7.2 out of 10.

Information disclosure in Splunk Mcp Server

CVE-2026-20205

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…

EPSS: 0.001 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Splunk Mcp Server — versions 1.0

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

advisory.splunk.com/advisories/SVD-2026-0407

Frequently asked questions

What is CVE-2026-20205?: CVE-2026-20205 is a high-severity vulnerability in Splunk Mcp Server, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.2/10. Published 2026-04-15.
How severe is CVE-2026-20205?: High severity. CVSS v3 base score is 7.2 out of 10.