Splunk Ent. <10.4.3,10.2.7,10.0.10,9.4.15 & SG <3.10.11,3.9.25,3.8.72: KV Write
CVE-2026-76280 Published on October 7, 2026
Incorrect Permission Assignment for App Key Value Store Collections in Splunk Secure Gateway
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.
Weakness Type
Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. When a resource is given a permissions setting that provides access to a wider range of actors than required, it could lead to the exposure of sensitive information, or the modification of that resource by unintended parties. This is especially dangerous when the resource is related to program configuration, execution or sensitive user data.
Products Associated with CVE-2026-76280
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Affected Versions
Splunk Enterprise:- Version 10.4 and below 10.4.3 is affected.
- Version 10.2 and below 10.2.7 is affected.
- Version 10.0 and below 10.0.10 is affected.
- Version 9.4 and below 9.4.15 is affected.
- Version 3.10 and below 3.10.11 is affected.
- Version 3.9 and below 3.9.25 is affected.
- Version 3.8 and below 3.8.72 is affected.