CVE-2026-32211
Azure MCP Server Information Disclosure Vulnerability
CVE-2026-32211 is a critical vulnerability (CVSS 9.1) in Microsoft Azure Web Apps, published April 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 59th percentile. No source names a fixed version.
- Severity
- 9.1 CriticalCVSS 3.1, CVE List
- Exploit chance
- 0.86%EPSS, 59th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Azure MCP Server Information Disclosure Vulnerability
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
- Record
CVE-2026-32211- CVSS 3.1
- 9.1 Critical
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 - Weakness
- CWE-306
- Updated
- 2026-11-02
EUVDEUVD-2026-18560
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
- Record
EUVD-2026-18560- CVSS 3.1
- 9.1 Critical
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5w7p-v6h9-q8c5
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker...
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
- Record
GHSA-5w7p-v6h9-q8c5- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
NVD
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
- Record
CVE-2026-32211- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.