Incorrect Permission Assignment for App Key Value Store Collections in Splunk Secure Gateway
Summary
| CVE | CVE-2026-76280 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-07 21:17:19 UTC |
| Updated | 2026-10-09 17:16:49 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 6.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS: 0.001700000 probability, percentile 0.057790000 (date 2026-10-09)
Problem Types: CWE-732 | CWE-732 The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| 3.1 | CNA | CVSS | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Splunk | Splunk Enterprise | affected 10.4 10.4.3 custom | Not specified |
| CNA | Splunk | Splunk Enterprise | affected 10.2 10.2.7 custom | Not specified |
| CNA | Splunk | Splunk Enterprise | affected 10.0 10.0.10 custom | Not specified |
| CNA | Splunk | Splunk Enterprise | affected 9.4 9.4.15 custom | Not specified |
| CNA | Splunk | Splunk Secure Gateway | affected 3.10 3.10.11 custom | Not specified |
| CNA | Splunk | Splunk Secure Gateway | affected 3.9 3.9.25 custom | Not specified |
| CNA | Splunk | Splunk Secure Gateway | affected 3.8 3.8.72 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| advisory.splunk.com/advisories/SVD-2026-1001 | [email protected] | advisory.splunk.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: M Mahdan Argya Syarif (0xbeludan) (en)
Additional Advisory Data
Solutions
CNA: Upgrade Splunk Enterprise to versions 10.4.3, 10.2.7, 10.0.10, and 9.4.15, or higher. Upgrade Splunk Secure Gateway to versions 3.10.11, 3.9.25, and 3.8.72, or higher.
Workarounds
CNA: Turn off or remove the Splunk Secure Gateway app. See [Manage app and add-on objects](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/meet-splunk-apps/manage-app-and-add-on-objects) in the Splunk documentation. Note: Splunk Mobile, Spacebridge, and Mission Control rely on functionality in the Splunk Secure Gateway app. If you do not use any of these apps, features, or functionality, as a potential mitigation, you may turn off or remove the app.