Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk | >= 9.3.0, < 9.3.13 |
| Splunk | Splunk Cloud Platform | >= 9.3.2411, < 9.3.2411.132 |
| Splunk | Splunk Secure Gateway | >= 3.8.0, < 3.8.67 |
Related Weaknesses (CWE)
References
- https://advisory.splunk.com/advisories/SVD-2026-0601Vendor Advisory
FAQ
What is CVE-2026-20251?
CVE-2026-20251 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 versi...
How severe is CVE-2026-20251?
CVE-2026-20251 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-20251?
Check the references section above for vendor advisories and patch information. Affected products include: Splunk Splunk, Splunk Splunk Cloud Platform, Splunk Splunk Secure Gateway.