CVE-2026-33109 Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code remotely due to improper access controls in Azure Managed Instance for Apache Cassandra.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33109?
CVE-2026-33109 is a critical missing authorization vulnerability in Microsoft Azure Managed Instance for Apache Cassandra, published on 7 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.
Weakness: CWE-284
Which versions are affected by CVE-2026-33109?
It affects 1 product.
Products include Microsoft Azure Managed Instance for Apache Cassandra.
How do I fix CVE-2026-33109?
No fix has been published for CVE-2026-33109 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-33109 being exploited?
There is no known exploitation of CVE-2026-33109 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Azure Managed Instance for Apache Cassandra
Sources
Also known as GHSA-g4xx-6vv3-3x48.