CVE-2026-32211
This vulnerability is a missing authentication flaw in Azure MCP Server that lets attackers read sensitive data over the network. It can be exploited without any user interaction and without needing to log in. The flaw is critical because it compromises confidentiality and integrity.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Microsoft Azure Web Apps (Azure MCP Server) – any deployment of the Azure MCP Server component that lacks authentication for its critical function.
Real-world impact
An attacker could read confidential data from the Azure MCP Server, potentially exposing sensitive information such as configuration settings, logs, or user data.
Why this severity
The CVSS score of 9.1 reflects that the vulnerability is network‑reachable, requires no authentication, and can compromise confidentiality and integrity, but does not provide a denial‑of‑service or privilege‑escalation path.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Apr 3, 2026 · Apr 3, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 24, 2026 · 11d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- msrc.microsoft.com/update-guide/vulnerability/…vendor advisory