CVE-2026-20240

EUVD-2026-31138
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
Affected Products (NVD)
VendorProductVersion
splunksplunk
9.3.0 ≤
𝑥
< 9.3.12
splunksplunk
9.4.0 ≤
𝑥
< 9.4.11
splunksplunk
10.0.0 ≤
𝑥
< 10.0.5
splunksplunk
10.2.0 ≤
𝑥
< 10.2.2
splunksplunk_cloud_platform
9.3.2411 ≤
𝑥
< 9.3.2411.129
splunksplunk_cloud_platform
10.0.2503 ≤
𝑥
< 10.0.2503.13
splunksplunk_cloud_platform
10.1.2507 ≤
𝑥
< 10.1.2507.21
splunksplunk_cloud_platform
10.2.2510 ≤
𝑥
< 10.2.2510.11
splunksplunk_cloud_platform
10.3.2512 ≤
𝑥
< 10.3.2512.9
splunksplunk_cloud_platform
10.4.2603
𝑥
= Vulnerable software versions