What is CVE-2026-32211?

CVE-2026-32211 is a critical-severity vulnerability in Microsoft Azure Web Apps, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-04-02.

How severe is CVE-2026-32211?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Microsoft Azure Web Apps

CVE-2026-32211

Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.

Vulnerability class: Broken Authentication

EPSS: 0.001 (24.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C.

Affected products

Microsoft Azure Web Apps

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

Azure MCP Server Information Disclosure Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-32211?: CVE-2026-32211 is a critical-severity vulnerability in Microsoft Azure Web Apps, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-04-02.
How severe is CVE-2026-32211?: Critical severity. CVSS v3 base score is 9.1 out of 10.