Splunk Enterprise SSRF in Report Notifications (v<10.4.2/10.2.6/10.0.9/9.4.14)
CVE-2026-76347 Published on August 19, 2026
Server-Side Request Forgery (SSRF) through the Report Notifications REST API in Splunk Secure Gateway
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could use Server-Side Request Forgery (SSRF) in report notifications to send system-authenticated requests to internal Splunk services, which could allow for changes to Search Head Cluster state and a denial of service. The vulnerability is possible because Splunk Secure Gateway does not validate report notification path values before it sends internal requests.
Weakness Type
What is a SSRF Vulnerability?
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.
CVE-2026-76347 has been classified to as a SSRF vulnerability or weakness.
Products Associated with CVE-2026-76347
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Affected Versions
Splunk Enterprise:- Version 10.4 and below 10.4.2 is affected.
- Version 10.2 and below 10.2.6 is affected.
- Version 10.0 and below 10.0.9 is affected.
- Version 9.4 and below 9.4.14 is affected.
- Version 3.10 and below 3.10.9 is affected.
- Version 3.9 and below 3.9.23 is affected.
- Version 3.8 and below 3.8.70 is affected.