Incorrect Permission Assignment for App Key Value Store Collections in Splunk Secure Gateway

Summary

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.

Timeline

1. Oct 7, 2026, 8:46 PM UTCCVE published
2. Oct 9, 2026, 4:15 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 9, 2026, 4:47 PM UTCRecord last updated

Affected versions

• Splunk Splunk Enterprise

  From 10.4 · fixed in 10.4.3; From 10.2 · fixed in 10.2.7; From 10.0 · fixed in 10.0.10; From 9.4 · fixed in 9.4.15

• Splunk Splunk Secure Gateway

  From 3.10 · fixed in 3.10.11; From 3.9 · fixed in 3.9.25; From 3.8 · fixed in 3.8.72

References 1