CVE-2026-33844: CWE-20: Improper Input Validation in Microsoft Azure Managed Instance for Apache Cassandra
Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability in Azure Managed Instance for Apache Cassandra arises from improper access control, enabling an attacker with authorized access to execute code remotely. The CVSS 3.1 score is 9.0, reflecting critical impact with high confidentiality, integrity, and availability consequences. The vulnerability affects the cloud service managed by Microsoft, which has released an official fix. The vendor advisory confirms remediation and that the cloud service patching is handled server-side.
Potential Impact
An authorized attacker can execute code remotely over the network, potentially leading to full compromise of confidentiality, integrity, and availability of the affected service. This could allow unauthorized actions within the managed instance environment.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for the Azure Managed Instance for Apache Cassandra cloud service. Customers should refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33844 for detailed guidance and ensure their service instances are updated accordingly.
CVE-2026-33844: CWE-20: Improper Input Validation in Microsoft Azure Managed Instance for Apache Cassandra
Description
Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 9.0critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Azure Managed Instance for Apache Cassandra arises from improper access control, enabling an attacker with authorized access to execute code remotely. The CVSS 3.1 score is 9.0, reflecting critical impact with high confidentiality, integrity, and availability consequences. The vulnerability affects the cloud service managed by Microsoft, which has released an official fix. The vendor advisory confirms remediation and that the cloud service patching is handled server-side.
Potential Impact
An authorized attacker can execute code remotely over the network, potentially leading to full compromise of confidentiality, integrity, and availability of the affected service. This could allow unauthorized actions within the managed instance environment.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for the Azure Managed Instance for Apache Cassandra cloud service. Customers should refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33844 for detailed guidance and ensure their service instances are updated accordingly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-24T00:52:01.354Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33844","vendor":"Microsoft"}]
Threat ID: 69fd029bcbff5d8610389b84
Added to database: 05/07/2026, 21:22:35 UTC
Last enriched: 08/11/2026, 16:35:38 UTC
Last updated: 08/12/2026, 14:15:39 UTC
Views: 213
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