CVE-2026-76276 Information Disclosure in the Discover Splunk Observability Cloud app through Splunk Web for Splunk Enterprise
Low-privileged users can access original source code via embedded source maps in the Discover Splunk Observability Cloud app.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76276?
CVE-2026-76276 is a medium-severity vulnerability in Splunk Splunk, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve original source code for the Discover Splunk Observability Cloud app through Splunk Web. The vulnerability is possible because production JavaScript bundles for the app contain embedded source maps that include original source code. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), Splunk Observability Cloud previews (https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.4/observability/splunk-observability-cloud-previews), and Navigating Splunk Web (https://help.splunk.com/en/splunk-enterprise/search/search-tutorial/10.4/part-1-getting-started/navigating-splunk-web) in the Splunk documentation.
Splunk Enterprise versions 9.4.x are not affected.
Weakness: CWE-1188
Which versions are affected by CVE-2026-76276?
It affects 1 product.
Products include Splunk Splunk.
How do I fix CVE-2026-76276?
No fix has been published for CVE-2026-76276 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76276 being exploited?
There is no known exploitation of CVE-2026-76276 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-2fgh-wj5r-jjc6.