CVE-2026-20204

EUVD-2026-22934
In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 43%
Affected Products (NVD)
VendorProductVersion
splunksplunk
9.3.0 ≤
𝑥
< 9.3.11
splunksplunk
9.4.0 ≤
𝑥
< 9.4.10
splunksplunk
10.0.0 ≤
𝑥
< 10.0.5
splunksplunk
10.2.0
splunksplunk_cloud_platform
9.3.2411 ≤
𝑥
< 9.3.2411.127
splunksplunk_cloud_platform
10.0.2503 ≤
𝑥
< 10.0.2503.13
splunksplunk_cloud_platform
10.1.2507 ≤
𝑥
< 10.1.2507.19
splunksplunk_cloud_platform
10.2.2510 ≤
𝑥
< 10.2.2510.9
splunksplunk_cloud_platform
10.3.2512 ≤
𝑥
< 10.3.2512.5
𝑥
= Vulnerable software versions