Medium · CVSS 6.5CVE-2026-76265

Improper Access Control through REST API Endpoints in Splunk Secure GatewayCVE-2026-76265

Answer in brief

CVE-2026-76265 records a Medium severity (CVSS 6.5) vulnerability in Improper Access Control 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.

Published Oct 7, 2026Updated Oct 7, 2026Source checked Oct 7, 2026First seen by HOL Oct 7, 2026Material review Oct 7, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.5
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.5. 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.

Affected scope and exposure questions

The current feed maps Splunk/Splunk Enterprise (generic), Splunk/Splunk Secure Gateway (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Splunk/Splunk Enterprisegeneric	>=10.4 <10.4.3 \|\| >=10.2 <10.2.7 \|\| >=10.0 <10.0.10 \|\| >=9.4 <9.4.15	10.4.3, 10.2.7, 10.0.10, 9.4.15
Splunk/Splunk Secure Gatewaygeneric	>=3.10 <3.10.11 \|\| >=3.9 <3.9.25 \|\| >=3.8 <3.8.72	3.10.11, 3.9.25, 3.8.72

Recommended response

Check inventory. Check lockfiles and deployed manifests for Splunk/Splunk Enterprise, Splunk/Splunk Secure Gateway.
Review the reported fix. Source-reported 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.

Evidence timeline and material changes

Published upstream
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 7, 2026

Sources and claim methodology

Source referenceadvisory.splunk.com

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.