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…

PriorityP337medium6.5CVSS 3.1

AVNACLPRLUINSUCNINAH

EPSS

0.40%

31.5th percentile

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.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

15 ranges

Vendor	Product	Version range	Fixed in
splunk	splunk	>= 10.0.0 < 10.0.5	10.0.5
splunk	splunk	>= 10.2.0 < 10.2.2	10.2.2
splunk	splunk	>= 9.3.0 < 9.3.12	9.3.12
splunk	splunk	>= 9.4.0 < 9.4.11	9.4.11
splunk	splunk_cloud_platform	—	—
splunk	splunk_cloud_platform	>= 10.0.2503 < 10.0.2503.13	10.0.2503.13
splunk	splunk_cloud_platform	>= 10.1.2507 < 10.1.2507.21	10.1.2507.21
splunk	splunk_cloud_platform	>= 10.2.2510 < 10.2.2510.11	10.2.2510.11
splunk	splunk_cloud_platform	>= 10.3.2512 < 10.3.2512.9	10.3.2512.9
splunk	splunk_cloud_platform	>= 10.4.2603 < 10.4.2603.1	10.4.2603.1
splunk	splunk_cloud_platform	>= 9.3.2411 < 9.3.2411.129	9.3.2411.129
splunk	splunk_enterprise	>= 10.0 < 10.0.5	10.0.5
splunk	splunk_enterprise	>= 10.2 < 10.2.2	10.2.2
splunk	splunk_enterprise	>= 9.3 < 9.3.12	9.3.12
splunk	splunk_enterprise	>= 9.4 < 9.4.11	9.4.11

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