CVE-2026-20240
In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2…
Impact
In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, and 9.3.2411.129, a low-privileged user that does not hold the ‘admin’ or ‘power’ Splunk roles could cause a Denial of Service by exploiting the `coldToFrozen.sh` script in the `splunk_archiver` app to rename critical Splunk directories, making the instance non-functional.<br><br>The Denial of Service is possible because of missing input validation in the `coldToFrozen.sh` script, which accepts arbitrary file paths and renames them without restricting operations to safe directories.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Splunk | Splunk | from 9.3.0 before 9.3.12 from 9.4.0 before 9.4.11 from 10.0.0 before 10.0.5 from 10.2.0 before 10.2.2 |
| Splunk | Splunk Cloud Platform | from 9.3.2411 before 9.3.2411.129 from 10.0.2503 before 10.0.2503.13 from 10.1.2507 before 10.1.2507.21 from 10.2.2510 before 10.2.2510.11 from 10.3.2512 before 10.3.2512.9 Version 10.4.2603 |