CVE-2023-40595: Splunk

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

In Splunk Enterprise versions lower than 8.2.12, 9.0.6, and 9.1.1, an attacker can execute a specially crafted query that they can then use to serialize untrusted data. The attacker can use the query to execute arbitrary code.

Affected products

• Splunk Splunk: from 8.2.0, before 8.2.12 (fixed in 8.2.12); from 9.0.0, before 9.0.6 (fixed in 9.0.6); version 9.1.0 only
• Splunk Splunk Cloud Platform: up to and including 9.0.2305.100

Published 2023-08-30. Last modified 2026-06-17.