Executive brief
Azure AI Language is Microsoft's cloud service for natural language processing and text analysis used by enterprises to extract insights from documents and communications. This vulnerability allows an unauthenticated attacker to bypass security controls and gain elevated privileges on the service, potentially leading to unauthorized access to sensitive data processed by the service and disruption of dependent applications.
Technical details
A missing authentication check in Azure AI Language allows an unauthenticated attacker to invoke a critical function and escalate privileges via network access. No credentials or user interaction are required to trigger the vulnerability. The authentication bypass enables an attacker to gain administrative or elevated account privileges over the affected service, compromising confidentiality, integrity, and availability. Microsoft has released a security patch; organizations should prioritize application of the update.
Affected products
- Microsoft Azure AI Language <UNKNOWN>
Timeline
- 2026-09-03: disclosed