[ CVE-2026-76289 · Published 21 Oct 2026 ]
Vulnerability in Splunk Enterprise
[ Description ]Official description
In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, a user who does not hold the "admin" or "power" Splunk roles could make the Splunk Enterprise instance unavailable to other users by sending a request to the Representational State Transfer (REST) API endpoint for lookup table files. The affected instance requires a restart to restore service. The vulnerability is possible because the endpoint does not limit resource use when it processes response field selections. For more information see Endpoints reference list (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.4/introduction/endpoints-reference-list) and 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) in the Splunk documentation.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
-
CERT-FRCERTFR-2026-AVI-1366
Multiple vulnerabilities in Splunk products Translated from French
Multiple vulnerabilities have been discovered in Splunk products. Some of them allow an attacker to cause arbitrary code execution, a breach of data confidentiality and remote cross-site scripting (XSS).
-
BSI CERT-BundWID-SEC-2026-4102
Splunk Splunk Enterprise: Multiple vulnerabilities Translated from German