CVE-2026-76280: In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, and Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72, an authenticated…

PriorityP341medium6.3CVSS 3.1

AVNACLPRLUINSUCLILAL

EPSS

0.17%

6.0th percentile

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, and Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72, an authenticated user who does not hold the "admin" or "sc_admin" Splunk roles could modify Splunk Secure Gateway alert and mobile-device recipient data in App Key Value Store (KV Store) collections that later alert and subscription workflows use. The vulnerability is possible because the affected collections allow unrestricted write access instead of limiting writes to authorized Splunk Secure Gateway workflows. For more information see About the app key value store (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/administer-the-app-key-value-store/about-the-app-key-value-store), KV store endpoint descriptions (https://help.splunk.com/en/splunk-enterprise/leverage-rest-apis/rest-api-reference/10.4/kv-store-endpoints/kv-store-endpoint-descriptions), and About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.

Affected

14 ranges

Vendor	Product	Version range	Fixed in
splunk	splunk	>= 10.0.0 < 10.0.10	10.0.10
splunk	splunk	>= 10.2.0 < 10.2.7	10.2.7
splunk	splunk	>= 10.4.0 < 10.4.3	10.4.3
splunk	splunk	>= 9.4.0 < 9.4.15	9.4.15
splunk	splunk_enterprise	>= 10.0 < 10.0.10	10.0.10
splunk	splunk_enterprise	>= 10.2 < 10.2.7	10.2.7
splunk	splunk_enterprise	>= 10.4 < 10.4.3	10.4.3
splunk	splunk_enterprise	>= 9.4 < 9.4.15	9.4.15
splunk	splunk_secure_gateway	>= 3.10 < 3.10.11	3.10.11
splunk	splunk_secure_gateway	>= 3.10.0 < 3.10.11	3.10.11
splunk	splunk_secure_gateway	>= 3.8 < 3.8.72	3.8.72
splunk	splunk_secure_gateway	>= 3.8.0 < 3.8.72	3.8.72
splunk	splunk_secure_gateway	>= 3.9 < 3.9.25	3.9.25
splunk	splunk_secure_gateway	>= 3.9.0 < 3.9.25	3.9.25

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