CVE-2026-76348

Missing Authorization in Search Head Cluster Member Controls in Splunk Enterprise

State: Published
Severity: 3.8 Low
Published: Aug 19, 2026
Updated: Aug 20, 2026
Reserved: Aug 19, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	3.8 Low	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L	cisco

Weaknesses

CWE-862 The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

Affected Products

Product	Versions
Splunk EnterpriseSplunk	10.4 to before 10.4.2Affected 10.2 to before 10.2.6Affected 10.0 to before 10.0.9Affected 9.4 to before 9.4.14Affected

References

https://advisory.splunk.com/advisories/SVD-2026-0801

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