Splunk Enterprise <10.4.3,10.2.7,10.0.10: Low-Priv Source Code Leak via Observability Cloud App
CVE-2026-76276 Published on October 7, 2026
Information Disclosure in the Discover Splunk Observability Cloud app through Splunk Web for Splunk Enterprise
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 Type
Insecure Default Initialization of Resource
The software initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.
Products Associated with CVE-2026-76276
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Affected Versions
Splunk Enterprise:- Version 10.4 and below 10.4.3 is affected.
- Version 10.2 and below 10.2.7 is affected.
- Version 10.0 and below 10.0.10 is affected.