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CVE-2026-76268 | Splunk Enterprise Patroni REST API Missing Authentication Vulnerability

Horizon3.aiOctober 22, 2026Vulnerabilities Identity AppSec

Horizon3.ai's NodeZero Rapid Response test helps security teams validate exposure to CVE-2026-76268, a critical Splunk Enterprise vulnerability that could allow unauthenticated attackers with network access to execute operating-system commands.

Summary from Horizon3.ai.

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Explained

The technology and terms in this story. Learn more

ConceptCVE · Common Vulnerabilities and ExposuresThe public ID system for vulnerabilities, such as CVE-2026-12345, so everyone means the same bug.

Why it was possible

The weaknesses behind this story's CVEs, from each CVE Record.

CWE-306The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Vulnerabilities in this story

Severity and exploitation facts from NVD, FIRST, and CISA.

CVE-2026-76268Critical 9.8EPSS 4.8%

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