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CVE-2026-20204

7.1 high SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.1 · splunkNVD modified 2026-10-26 21:10

Affected (CPE criteria) 3

  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
  • cpe:2.3:a:splunk:splunk:10.2.0:*:*:*:enterprise:*:*:*
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*

References 1