Low [CVE-2026-76348] Missing Authorization in Search Head Cluster Member Controls in Splunk Enterprise
This low-severity Splunk advisory covers CVE-2026-76348 affecting Splunk Enterprise.
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Summary
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who holds a Splunk role that contains the high-privilege list_search_head_clustering capability could send a read request to Search Head Cluster member control endpoints and change cluster state, which could allow for a denial of service.
The vulnerability is possible because the Search Head Cluster member control endpoints do not require a state-changing Hypertext Transfer Protocol (HTTP) request type before they apply read-only authorization.
- Splunk Enterprise 10.4 before 10.4.2
- Splunk Enterprise 10.2 before 10.2.6
- Splunk Enterprise 10.0 before 10.0.9
- Splunk Enterprise 9.4 before 9.4.14
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 10.4.2
- 10.2.6
- 10.0.9
- 9.4.14
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- The vulnerability is possible because the Search Head Cluster member control endpoints do not require a state-changing Hypertext Transfer Protocol (HTTP) request type before they apply read-only authorization.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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