Answer in brief
CVE-2026-76256 records a Unknown severity vulnerability in Information Exposure through REST API Endpoints in Splunk Secure Gateway. The current sources do not mark it as known exploited. The current feed maps Splunk/Splunk Enterprise (generic), Splunk/Splunk Secure Gateway (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Splunk/Splunk Enterprise (generic), Splunk/Splunk Secure Gateway (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Splunk/Splunk Enterprisegeneric | >=10.4 <10.4.2 || >=10.2 <10.2.6 || >=10.0 <10.0.9 || >=9.4 <9.4.14 | 10.4.2, 10.2.6, 10.0.9, 9.4.14 |
| Splunk/Splunk Secure Gatewaygeneric | >=3.10 <3.10.9 || >=3.9 <3.9.23 || >=3.8 <3.8.70 | 3.10.9, 3.9.23, 3.8.70 |
Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.