---
id: CVE-2026-20240
title: >-
  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 ho…
summary: >-
  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 ho…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-20
vendor: splunk
product: splunk
affected:
  - 'splunk >= 9.3.0, < 9.3.12'
  - 'splunk >= 9.4.0, < 9.4.11'
  - 'splunk >= 10.0.0, < 10.0.5'
  - 'splunk >= 10.2.0, < 10.2.2'
  - 'splunk_cloud_platform >= 9.3.2411, < 9.3.2411.129'
  - 'splunk_cloud_platform >= 10.0.2503, < 10.0.2503.13'
  - 'splunk_cloud_platform >= 10.1.2507, < 10.1.2507.21'
  - 'splunk_cloud_platform >= 10.2.2510, < 10.2.2510.11'
  - 'splunk_cloud_platform >= 10.3.2512, < 10.3.2512.9'
  - splunk_cloud_platform = 10.4.2603
patched:
  - splunk 10.2.2
  - splunk_cloud_platform 10.3.2512.9
published: '2026-05-20'
updated: '2026-07-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20240'
references:
  - url: 'https://advisory.splunk.com/advisories/SVD-2026-0504'
    label: psirt@cisco.com
tags:
  - nvd
epss: 0.00396
epssPercentile: 0.31027
ingestedAt: '2026-07-23T12:17:55.618Z'
---

## Overview

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

- `splunk >= 9.3.0, < 9.3.12`
- `splunk >= 9.4.0, < 9.4.11`
- `splunk >= 10.0.0, < 10.0.5`
- `splunk >= 10.2.0, < 10.2.2`
- `splunk_cloud_platform >= 9.3.2411, < 9.3.2411.129`
- `splunk_cloud_platform >= 10.0.2503, < 10.0.2503.13`
- `splunk_cloud_platform >= 10.1.2507, < 10.1.2507.21`
- `splunk_cloud_platform >= 10.2.2510, < 10.2.2510.11`
- `splunk_cloud_platform >= 10.3.2512, < 10.3.2512.9`
- `splunk_cloud_platform = 10.4.2603`

## Remediation

Upgrade past the affected range:

- `splunk 10.2.2`
- `splunk_cloud_platform 10.3.2512.9`