Skip to main content
← All vulnerabilities
CVE-2026-20204

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.2.1, 10.0.5, 9.4.10, 9.3.11, 10.3.2512.5, and 4 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  2. CVE published
  3. Record last updated

Affected versions

  • Splunk Splunk Enterprise

    From 10.2 · fixed in 10.2.1; From 10.0 · fixed in 10.0.5; From 9.4 · fixed in 9.4.10; From 9.3 · fixed in 9.3.11

  • Splunk Splunk Cloud Platform

    From 10.3.2512 · fixed in 10.3.2512.5; From 10.2.2510 · fixed in 10.2.2510.9; From 10.1.2507 · fixed in 10.1.2507.19; From 10.0.2503 · fixed in 10.0.2503.13; From 9.3.2411 · fixed in 9.3.2411.127

References 1

advisory.splunk.com