CVE-2026-20240
Description
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.
How to fix
- splunk splunk9.3.12, 9.4.11, 10.0.5, 10.2.2 or later
- splunk splunk_cloud_platform9.3.2411.129, 10.0.2503.13, 10.1.2507.21, 10.2.2510.11, 10.3.2512.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| splunk splunk | 9.3.0 ≤ v < 9.3.12, 9.4.0 ≤ v < 9.4.11, 10.0.0 ≤ v < 10.0.5, 10.2.0 ≤ v < 10.2.2 | 9.3.12, 9.4.11, 10.0.5, 10.2.2 |
| splunk splunk_cloud_platform | 9.3.2411 ≤ v < 9.3.2411.129, 10.0.2503 ≤ v < 10.0.2503.13, 10.1.2507 ≤ v < 10.1.2507.21, 10.2.2510 ≤ v < 10.2.2510.11, 10.3.2512 ≤ v < 10.3.2512.9, 10.4.2603 | 9.3.2411.129, 10.0.2503.13, 10.1.2507.21, 10.2.2510.11, 10.3.2512.9 |
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