CVE-2026-76299 Security Hardening in Splunk Enterprise - October 2026

Critical 9.9 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-76299?

CVE-2026-76299 is a critical vulnerability in Splunk Enterprise, published on 21 Oct 2026.

Official description

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76299 are related to improper access control and are grouped under the Common Weakness Enumeration (CWE) CWE-284.

Weakness: CWE-284

Which versions are affected by CVE-2026-76299?

How do I fix CVE-2026-76299?

No fix has been published for CVE-2026-76299 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-76299 being exploited?

There is no known exploitation of CVE-2026-76299 in the wild and no public exploit code.

Sources

Also known as GHSA-vwr2-h35x-mr2c.

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