CVE-2026-20204
Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-377 |
| Vendor | splunk |
| Product | splunk enterprise |
| Published | Apr 15, 2026 |
| Last Updated | Apr 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for splunk splunk enterprise
Be the first to know when new high vulnerabilities affecting splunk splunk enterprise are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Splunk / Splunk Enterprise
10.2 < 10.2.1 10.0 < 10.0.5 9.4 < 9.4.10 9.3 < 9.3.11
Splunk / Splunk Cloud Platform
10.4.2603 < Not Affected 10.3.2512 < 10.3.2512.5 10.2.2510 < 10.2.2510.9 10.1.2507 < 10.1.2507.19 10.0.2503 < 10.0.2503.13 9.3.2411 < 9.3.2411.127
References
Credits
Gabriel Nitu, Splunk