CVE-2025-20388 Blind Server Side Request Forgery (SSRF) through Distributed Search Peers in Splunk Enterprise
Privileged users can enumerate internal network resources via SSRF in distributed search peer configurations, exposing internal infrastructure details.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-20388?
CVE-2025-20388 is a low-severity server-side request forgery vulnerability in Splunk Splunk, published on 3 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In Splunk Enterprise versions below 10.0.1, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.4, 10.0.2503.7, and 9.3.2411.116, a user who holds a role that contains the high privilege capability `change_authentication` could enumerate internal IP addresses and network ports when adding new search peers to a Splunk search head in a distributed environment.
Weakness: CWE-918
Which versions are affected by CVE-2025-20388?
It affects 2 products.
Products include Splunk Splunk, Splunk Splunk Cloud Platform.
How do I fix CVE-2025-20388?
No fix has been published for CVE-2025-20388 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-20388 being exploited?
There is no known exploitation of CVE-2025-20388 in the wild and no public exploit code.
Other vulnerabilities in Splunk Splunk
- CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function
- CVE-2026-76268 Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
- CVE-2026-76284 Improper Neutralization in Splunk Enterprise
- CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise
- CVE-2017-17067 Auth bypass in n/a
Sources
Also known as GHSA-c3c6-ggqg-7crv.