Improper Access Control in Azure Managed Instance for Apache Cassandra
CVE-2026-33109

9.9CRITICAL

Key Information:

Vendor

Microsoft
Status
Azure Managed Instance For Apache Cassandra
Vendor
CVE Published:
7 May 2026

What is CVE-2026-33109?

A vulnerability exists in Azure Managed Instance for Apache Cassandra that allows an authorized attacker to exploit improper access control. This flaw can enable a malicious actor to execute arbitrary code over a network, posing significant risks to the integrity and security of data managed by the service. Organizations utilizing this product should assess their exposure and apply the necessary patches to mitigate potential threats.

Affected Version(s)

Azure Managed Instance for Apache Cassandra -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.