Medium [CVE-2026-76265] Improper Access Control through REST API Endpoints in Splunk Secure Gateway
This medium-severity Splunk advisory covers CVE-2026-76265 affecting Splunk Enterprise, Splunk Secure Gateway.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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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, a user who does not hold the "admin" or "power" Splunk roles could access privileged Splunk Secure Gateway functionality.
With this access, the user could cause Splunk Secure Gateway to sign attacker-controlled payloads. The vulnerability is possible because multiple Splunk Secure Gateway Representational State Transfer (REST) API endpoints do not enforce authorization requirements before processing requests.
- Splunk Enterprise 10.4 before 10.4.3
- Splunk Enterprise 10.2 before 10.2.7
- Splunk Enterprise 10.0 before 10.0.10
- Splunk Enterprise 9.4 before 9.4.15
- Splunk Secure Gateway 3.10 before 3.10.11
- Splunk Secure Gateway 3.9 before 3.9.25
- Splunk Secure Gateway 3.8 before 3.8.72
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
- 10.4.3
- 10.2.7
- 10.0.10
- 9.4.15
- 3.10.11
- 3.9.25
- 3.8.72
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation
Upgrade to a fixed release: 10.4.3, 10.2.7, 10.0.10, 9.4.15, 3.10.11, 3.9.25. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Discussion(0)
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