CVE 7.1 HIGH

Denial of Service through coldToFrozen.sh Script in Splunk Enterprise_CVE-2026-20240

7.1 / 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 β€˜admin’ or β€˜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.

Basic Information

ID CVE-2026-20240
Source cisco
Published May 20, 2026 at 16:32

Affected Product

Vendor Splunk
Product Splunk Enterprise
Version 10.2
Affected Versions Splunk Splunk Enterprise 10.2
Splunk Splunk Enterprise 10.0
Splunk Splunk Enterprise 9.4
Splunk Splunk Enterprise 9.3
Splunk Splunk Cloud Platform 10.4.2603
Splunk Splunk Cloud Platform 10.3.2512
Splunk Splunk Cloud Platform 10.2.2510
Splunk Splunk Cloud Platform 10.1.2507
Splunk Splunk Cloud Platform 10.0.2503
Splunk Splunk Cloud Platform 9.3.2411

References

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