CVE-2026-48567 Azure HorizonDB Elevation of Privilege Vulnerability

Critical 10.0 Published Updated

An attacker can bypass authentication via spoofing in Azure HorizonDB to elevate privileges over the network.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-48567?

CVE-2026-48567 is a critical authentication bypass vulnerability in Microsoft Azure HorizonDB, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Authentication bypass by spoofing in Azure HorizonDB allows an unauthorized attacker to elevate privileges over a network.

Weakness: CWE-290

Which versions are affected by CVE-2026-48567?

It affects 1 product.

Products include Microsoft Azure Horizondb.

How do I fix CVE-2026-48567?

No fix has been published for CVE-2026-48567 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-48567 being exploited?

There is no known exploitation of CVE-2026-48567 in the wild and no public exploit code.

Sources

Also known as GHSA-xmr7-v6qh-4cp6.

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