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Critical 9.1Published Apr 2, 2026
CVE-2026-32211Azure MCP Server Information Disclosure Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft Azure Web Apps. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
- CVSS
- 9.1 CRITICAL (v3.1, CNA)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)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Azure Web Apps microsoft:azure_web_apps (from the name) | - | CNA record |
microsoft azure_web_apps microsoft:azure_web_apps | all versions | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.