8.8
/ 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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.
AI Analysis
Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway
Basic Information
ID
CVE-2026-20251
Source
cisco
Published
Jun 10, 2026 at 17:16
Modified
Jun 10, 2026 at 18:26
Affected Product
Vendor
Splunk
Product
Splunk Enterprise, Splunk Cloud Platform, Splunk Secure Gateway
Version
10.2.4, 10.0.7, 9.4.12, 9.3.13, 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, 9.3.2411.132, 3.10.6, 3.9.20, 3.8.67
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 10.3.2512
Splunk Splunk Cloud Platform 10.2.2510
Splunk Splunk Cloud Platform 10.1.2507
Splunk Splunk Cloud Platform 9.3.2411
Splunk Splunk Secure Gateway 3.10
Splunk Splunk Secure Gateway 3.9
Splunk Splunk Secure Gateway 3.8
Splunk Splunk Enterprise 10.0
Splunk Splunk Enterprise 9.4
Splunk Splunk Enterprise 9.3
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 9.3.2411
Splunk Splunk Secure Gateway 3.10
Splunk Splunk Secure Gateway 3.9
Splunk Splunk Secure Gateway 3.8
AI Assessment
AI Score
8.8 / 10
AI Severity
High
Vendor
Splunk
Product
Splunk Enterprise, Splunk Cloud Platform, Splunk Secure Gateway
Version
10.2.4, 10.0.7, 9.4.12, 9.3.13, 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, 9.3.2411.132, 3.10.6, 3.9.20, 3.8.67