CVE-2026-88132
Undergoing Analysis Undergoing Analysis - In Progress

Azure Key Vault Origin Validation Error Leads to Information Disclosure

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description
Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-16
Generated
2026-10-19
AI Q&A
2026-10-14
EPSS Evaluated
2026-10-18
NVD
CVE-2026-88132
EUVD
EUVD-2026-99656

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
Microsoft Azure Key Vault Client SDK *
Microsoft azure-keyvault-administration 4.7.1
Microsoft azure-keyvault-certificates 4.11.2
Microsoft azure-keyvault-keys 4.11.2
Microsoft azure-keyvault-secrets 4.11.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-346 The product does not properly verify that the source of data or communication is valid.

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Executive Summary

This vulnerability is an origin validation error in Azure Key Vault. It allows an unauthorized attacker to disclose information over a network without needing special access or user interaction.

Impact Analysis

An attacker could exploit this to access sensitive information stored in Azure Key Vault, potentially leading to data breaches or unauthorized data exposure.

Compliance Impact

This vulnerability could lead to non-compliance with data protection regulations like GDPR or HIPAA due to unauthorized information disclosure, potentially resulting in legal penalties or reputational damage.

Mitigation Strategies

Apply the latest security updates from Microsoft for Azure Key Vault components. Review network traffic for unauthorized access attempts to Azure Key Vault endpoints. Ensure origin validation is properly configured in your Azure Key Vault setup.

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