VDB
CVE-2026-20251
CVE-2026-20251
PUBLISHED
CVSS 8.8 HIGH
Reported by cisco · Published June 10, 2026
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.
Risk Scores
CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk Enterprise | 10.2, 10.0, 9.4 |
| Splunk | Splunk Cloud Platform | 10.3.2512, 10.2.2510, 10.1.2507 |
| Splunk | Splunk Secure Gateway | 3.10, 3.9, 3.8 |
| Splunk | Splunk Enterprise | 10.2, 10.0, 9.4 |
| Splunk | Splunk Secure Gateway | 3.10, 3.9, 3.8 |
| Splunk | Splunk Cloud Platform | 10.3.2512, 10.2.2510, 10.1.2507 |
Timeline
- Jun 10, 2026 CVE Published
- Jun 11, 2026 Coalition ESS Score
- Jun 11, 2026 CVE Updated
- Jun 12, 2026 Security Advisory