CVE-2026-20251

EUVD-2026-36082
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, Splunk Cloud Platform versions below 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, and 9.3.2411.132, and Splunk Secure Gateway versions below 3.10.6, 3.9.20, and 3.8.67, a low-privileged user that does not hold the 'admin' or 'power' Splunk roles could perform a Remote Code Execution (RCE) through the Splunk Secure Gateway app.<br><br>The Remote Code Execution is possible because of unsafe deserialization of App Key Value Store (KV Store) data through the ‘jsonpickle’ Python library, which reconstructs arbitrary Python objects from specially crafted JavaScript Object Notation (JSON) without adequate validation.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 97%
Affected Products (NVD)
VendorProductVersion
splunksplunk
9.3.0 ≤
𝑥
< 9.3.13
splunksplunk
9.4.0 ≤
𝑥
< 9.4.12
splunksplunk
10.0.0 ≤
𝑥
< 10.0.7
splunksplunk
10.2.0 ≤
𝑥
< 10.2.4
splunksplunk_cloud_platform
9.3.2411 ≤
𝑥
< 9.3.2411.132
splunksplunk_cloud_platform
10.1.2507 ≤
𝑥
< 10.1.2507.22
splunksplunk_cloud_platform
10.2.2510 ≤
𝑥
< 10.2.2510.14
splunksplunk_cloud_platform
10.3.2512 ≤
𝑥
< 10.3.2512.12
splunksplunk_secure_gateway
3.8.0 ≤
𝑥
< 3.8.67
splunksplunk_secure_gateway
3.9.0 ≤
𝑥
< 3.9.20
splunksplunk_secure_gateway
3.10.0 ≤
𝑥
< 3.10.6
𝑥
= Vulnerable software versions