SECURELYN

CVE-2026-20251

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.brbrThe 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 fr…

Scores

8.8
CVSS 8.8 out of 10, high severity.
32.2%
EPSS 32.2% chance of exploitation in the next 30 days.

The facts

Published
10 June 2026
Last changed
17 June 2026
NVD status
Analyzed
Severity
High, CVSS 8.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
Affects
  • splunk splunk
  • splunk splunk cloud platform
  • splunk splunk secure gateway
Known exploited
Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
EPSS
32.2% chance of exploitation activity in the next 30 days (percentile 98).

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References