CVE-2026-65770 Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability

Critical 10.0 Published 20 Aug 2026 Updated 28 Oct 2026

An unauthorized attacker can execute arbitrary code remotely via argument injection in Azure Managed Instance for Apache Cassandra.

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-2026-65770?

CVE-2026-65770 is a critical command injection vulnerability in Microsoft Azure Managed Instance for Apache Cassandra, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper neutralization of argument delimiters in a command ('argument injection') in Azure Managed Instance for Apache Cassandra allows an unauthorized attacker to execute code over a network.

Weakness: CWE-88

Which versions are affected by CVE-2026-65770?

It affects 1 product.

Products include Microsoft Azure Managed Instance for Apache Cassandra.

How do I fix CVE-2026-65770?

No fix has been published for CVE-2026-65770 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-65770 being exploited?

There is no known exploitation of CVE-2026-65770 in the wild and no public exploit code.

Sources

Also known as GHSA-47hp-vwhc-cpvh.