CVE-2026-76289 (GCVE-0-2026-76289)

Vulnerability from cvelistv5 – Published: 2026-10-21 22:51 – Updated: 2026-10-22 13:37
VLAI
Title
Denial of Service (DoS) through the REST API in Splunk Enterprise
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 13:20 UTC
CWE
  • CWE-770 - The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 442 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splunk Splunk Enterprise Affected: 10.4 , < 10.4.4 (custom)
Affected: 10.2 , < 10.2.8 (custom)
Affected: 10.0 , < 10.0.11 (custom)
Affected: 9.4 , < 9.4.16 (custom)
guessed Create a notification for this product.
Date Public
2026-10-21 00:00
Credits
Pedro Cardoso (tvmpt)
Show details on NVD website
To clipboard 

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