High [CVE-2026-20297] Path Traversal through 'explicit_appname' in the App Install REST Endpoint in Splunk Enterprise
This high-severity Splunk advisory covers CVE-2026-20297 affecting Splunk Enterprise, Splunk Cloud Platform.
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Summary
In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, 9.4.13, and 9.3.14, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.6, 10.2.2510.18, and 10.1.2507.24, a user who holds a role that contains the `edit_local_apps` and `install_apps` capabilities could cause a legitimate app installation to write files outside the intended app directory, into `$SPLUNK_HOME/etc/` and its subdirectories.
The vulnerability is caused by a path traversal in the app installation workflow, which does not restrict the installation path to the intended app directory.
- Splunk Enterprise 10.4 before 10.4.1
- Splunk Enterprise 10.2 before 10.2.5
- Splunk Enterprise 10.0 before 10.0.8
- Splunk Enterprise 9.4 before 9.4.13
- Splunk Enterprise 9.3 before 9.3.14
- Splunk Cloud Platform 10.5.2605 before 10.5.2605.0
- Splunk Cloud Platform 10.4.2604 before 10.4.2604.6
- Splunk Cloud Platform 10.2.2510 before 10.2.2510.18
- Splunk Cloud Platform 10.1.2507 before 10.1.2507.24
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 10.4.1
- 10.2.5
- 10.0.8
- 9.4.13
- 9.3.14
- 10.5.2605.0
- 10.4.2604.6
- 10.2.2510.18
- 10.1.2507.24
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- The vulnerability is caused by a path traversal in the app installation workflow, which does not restrict the installation path to the intended app directory.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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