All vulnerabilities
CVE-2026-76296

Missing Authorization through Sourcetype Renaming in Splunk Web for Splunk Enterprise

Splunk Splunk EnterpriseApplications & CMS
CVSS
4.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.4.4Also 10.2.8, 10.0.11 and 1 moreCVE List
Published21 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 4

  • Splunk Enterpriseaffected: 10.4 before 10.4.4CVE List
  • Splunk Enterpriseaffected: 10.2 before 10.2.8CVE List
  • Splunk Enterpriseaffected: 10.0 before 10.0.11CVE List
  • Splunk Enterpriseaffected: 9.4 before 9.4.16CVE List

References 1