What’s Vulnerable › Vulnerabilities

CVE-2025-20322: Denial of Service (DoS) in Search Head Cluster through Cross-Site Request Forgery (CSRF) in Splunk Enterprise

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-07 · updated 2026-06-17
• Weakness: CWE-352

Description

In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and 9.1.10, and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, an unauthenticated attacker could send a specially-crafted SPL search command that could trigger a rolling restart in the Search Head Cluster through a Cross-Site Request Forgery (CSRF), potentially leading to a denial of service (DoS).<br><br>The vulnerability requires the attacker to phish the administrator-level victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit the vulnerability at will.<br><br>See [How rolling restart works](https://docs.splunk.com/Documentation/Splunk/9.4.2/DistSearch/RestartSHC) for more information.

Affected products

• Splunk Enterprise: from 9.1.0 before 9.1.10; from 9.2.0 before 9.2.7; from 9.3.0 before 9.3.5; from 9.4.0 before 9.4.3 — fixed in 9.1.10, 9.2.7, 9.3.5, 9.4.3
• Splunk Cloud Platform: from 9.2.2406 before 9.2.2406.119; from 9.3.2408 before 9.3.2408.113; from 9.3.2411 before 9.3.2411.104 — fixed in 9.2.2406.119, 9.3.2408.113, 9.3.2411.104

How to fix

Upgrade to a fixed version: Splunk Enterprise 9.1.10, 9.2.7, 9.3.5, 9.4.3; Splunk Cloud Platform 9.2.2406.119, 9.3.2408.113, 9.3.2411.104. Check the vendor advisory for mitigations.

References

• https://advisory.splunk.com/advisories/SVD-2025-0705

Get alerted when CVE-2025-20322 or the next vulnerability affects your stack