Skip to content
OpenAdvisories
High · 7.1 CVE-2026-20240 EUVD-2026-31138GHSA-2fmj-cw46-4vrm

Denial of Service through coldToFrozen.sh Script in Splunk Enterprise

Published May 20, 2026 · Updated May 20, 2026 · Assigned by cisco

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.

Affected products

VendorProductAffectedFixed
Splunk Splunk Enterprise 10.2 – < 10.2.2, 10.0 – < 10.0.5, 9.4 – < 9.4.11, 9.3 – < 9.3.12 10.2.2
Splunk Splunk Cloud Platform 10.4.2603 – < 10.4.2603.1, 10.3.2512 – < 10.3.2512.9, 10.2.2510 – < 10.2.2510.11, 10.1.2507 – < 10.1.2507.21, 10.0.2503 – < 10.0.2503.13, 9.3.2411 – < 9.3.2411.129 10.4.2603.1

Advisories 1

References