CVE-2026-20251
Analyzed
Analyzed - Analysis Complete
Remote Code Execution in Splunk via KV Store Deserialization
Publication date: 2026-06-10
Last updated on: 2026-06-15
Assigner: Cisco Systems, Inc.
Description
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 Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| splunk | splunk | From 10.0.0 (inc) to 10.0.7 (exc) |
| splunk | splunk | From 10.2.0 (inc) to 10.2.4 (exc) |
| splunk | splunk | From 9.3.0 (inc) to 9.3.13 (exc) |
| splunk | splunk | From 9.4.0 (inc) to 9.4.12 (exc) |
| splunk | splunk_cloud_platform | From 10.1.2507 (inc) to 10.1.2507.22 (exc) |
| splunk | splunk_cloud_platform | From 10.2.2510 (inc) to 10.2.2510.14 (exc) |
| splunk | splunk_cloud_platform | From 10.3.2512 (inc) to 10.3.2512.12 (exc) |
| splunk | splunk_cloud_platform | From 9.3.2411 (inc) to 9.3.2411.132 (exc) |
| splunk | splunk_secure_gateway | From 3.10.0 (inc) to 3.10.6 (exc) |
| splunk | splunk_secure_gateway | From 3.8.0 (inc) to 3.8.67 (exc) |
| splunk | splunk_secure_gateway | From 3.9.0 (inc) to 3.9.20 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-502 | The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. |
