CVE-2026-76296

Missing Authorization through Sourcetype Renaming in Splunk Web for Splunk Enterprise

Severity
Medium 4.3
CVSS 3.1
Remote, needs privileges or user interaction what this means
Exploited
Not listed
EPSS
—
Discovered by
Not disclosed
Published
Oct 21, 2026
Assigned by cisco

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 create, move, edit, or delete sourcetype renaming configurations that they own in apps that they do not have permission to access. The vulnerability is possible when Splunk Web is turned on because Splunk Web does not verify the required app permissions before it performs sourcetype renaming operations. For more information see Rename source types at search time (https://help.splunk.com/en/splunk-enterprise/get-started/get-data-in/10.6/configure-source-types/rename-source-types-at-search-time) in the Splunk documentation.

Weakness: CWE-862

Affected products

Vendor Product Category Matched by
Cisco Splunk Enterprise SIEM & Log Management cna-assigner
Vendor-reported products (1)
  • Splunk · Splunk Enterprise

Credit

Saidina Hikam (xzyhellsing)

Vendor remediation

Upgrade Splunk Enterprise to versions 10.4.4, 10.2.8, 10.0.11, and 9.4.16 or higher.

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