Missing Authorization in Search Head Cluster Member Controls in Splunk Enterprise
Published Aug 19, 2026
3.8
LOWCVSS 3.1
EPSS 0.32%
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.
Affected products
-
- Version 10.0StatusaffectedConstraints<10.0.9
- Version 10.2StatusaffectedConstraints<10.2.6
- Version 10.4StatusaffectedConstraints<10.4.2
- Version 9.4StatusaffectedConstraints<9.4.14
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Splunk | Splunk Enterprise | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Aug 20, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.32% (0.00318) | 22.41th | v5 (v2026.06.15) |
| Aug 20, 2026 | 0.23% (0.00231) | 14.28th | v5 (v2026.06.15) |
References (1)
- https://advisory.splunk.com/advisories/SVD-2026-0801 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://advisory.splunk.com/advisories/SVD-2026-0801 | Vendor Advisory |
Change history (0)
No recorded changes yet.