Missing Access Control through the REST API in Splunk Secure Gateway

Description

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, a user who does not hold the "admin" or "power" Splunk roles could cause Splunk Secure Gateway to sign attacker-controlled payloads. The vulnerability is possible because Splunk Secure Gateway does not verify that the user is authorized to request a signature. Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72 are also affected. For more information see Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) in the Splunk documentation.

Scores

EPSS (exploitation in 30 days)

0.22% · top 88% of all CVEs (7 Nov 2026)

CISA SSVC

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

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

• CWE-862: The software does not perform an authorization check when an actor attempts to access a resource or perform an action. (opens in a new tab)All about CWE-862 and its CVEs

Affected products

• Splunk · Splunk Enterprise

  • affected 10.4 – < 10.4.3
  • affected 10.2 – < 10.2.7
  • affected 10.0 – < 10.0.10
  • affected 9.4 – < 9.4.15

• Splunk · Splunk Secure Gateway

  • affected 3.10 – < 3.10.11
  • affected 3.9 – < 3.9.25
  • affected 3.8 – < 3.8.72

What to do

Solution: 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.

Workaround: 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.

References (1)

• https://advisory.splunk.com/advisories/SVD-2026-1001 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-76272](https://trackcve.app/badge/CVE-2026-76272.svg)](https://trackcve.app/cve/CVE-2026-76272)

Record last updated 8 Oct 2026, 15:07 UTC.