CVE-2026-76256

Information Exposure through REST API Endpoints in Splunk Secure Gateway

State
Published
Severity
4.3 Medium
Published
Aug 19, 2026
Updated
Aug 26, 2026
Reserved
Aug 19, 2026

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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 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could read sensitive Security Assertion Markup Language setup and instance settings information through Splunk Secure Gateway Representational State Transfer (REST) API endpoints. The vulnerability is possible because the affected Security Assertion Markup Language setup and instance settings REST API endpoints do not enforce authorization requirements before returning configuration information.

Scores

CVSSScoreVectorSource
3.14.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Ncisco

Weaknesses

  • CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Products

ProductVersions
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 3.10.9Affected
  • 3.9 to before 3.9.23Affected
  • 3.8 to before 3.8.70Affected

References

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