CVE-2026-76257

Missing Authorization through REST API Endpoints in Splunk Secure Gateway

State: Published
Severity: 6.5 Medium
Published: Aug 19, 2026
Updated: Aug 26, 2026
Reserved: Aug 19, 2026

Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.10, 3.9.24, and 3.8.71, a user who holds a Splunk role with permissions to list storage passwords but does not hold Splunk Secure Gateway administration privileges could access Mobile Device Management signing secrets that compromise all affected mobile-device enrollment trust through Splunk Secure Gateway. The vulnerability is possible because Splunk Secure Gateway Representational State Transfer (REST) API endpoints for deployment bundle, Security Assertion Markup Language setup, and companion app workflows do not require Splunk Secure Gateway administration privileges before processing requests.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	cisco

Weaknesses

CWE-862 The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

Affected Products

Product	Versions
Splunk EnterpriseSplunk	10.4 to before 10.4.2Affected 10.2 to before 10.2.6Affected 10.0 to before 10.0.9Affected 9.4 to before 9.4.14Affected
Splunk Secure GatewaySplunk	3.10 to before 3.10.10Affected 3.9 to before 3.9.24Affected 3.8 to before 3.8.71Affected

References

https://advisory.splunk.com/advisories/SVD-2026-0801

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