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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-20204

Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise

Description

In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Splunk Splunk Enterprise

  • 10.2 to < 10.2.1affected
  • 10.0 to < 10.0.5affected
  • 9.4 to < 9.4.10affected
  • 9.3 to < 9.3.11affected

Splunk Splunk Cloud Platform

  • 10.4.2603 to < Not Affectedaffected
  • 10.3.2512 to < 10.3.2512.5affected
  • 10.2.2510 to < 10.2.2510.9affected
  • 10.1.2507 to < 10.1.2507.19affected
  • 10.0.2503 to < 10.0.2503.13affected
  • 9.3.2411 to < 9.3.2411.127affected

References