CVE-2026-20240

MediumCVSS 6.5/10Last modified Jul 23, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
Splunk	Splunk Enterprise	>= 10.2, < 10.2.2; >= 10.0, < 10.0.5; >= 9.4, < 9.4.11; >= 9.3, < 9.3.12
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

References

https://advisory.splunk.com/advisories/SVD-2026-0504Vendor Advisory

Timeline

Published: May 20, 2026
Last modified: Jul 23, 2026
NVD status: Analyzed

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