Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Exploiting this vulnerability would require an attacker modify the response to take the desired action. An attacker would also have to rely on compromising the principal consuming the SDK, which is beyond attacker's control.
What type of information could be disclosed by this vulnerability?
Exploiting this vulnerability could allow the disclosure of credentials.
Security updates
4.10.2 — https://github.com/Azure/azure-sdk-for-net/blob/Azure.Security.KeyVault.Keys_4.10.2/sdk/keyvault/Azure.Security.KeyVault.Keys/CHANGELOG.md
4.9.2 — https://github.com/Azure/azure-sdk-for-net/blob/Azure.Security.KeyVault.Certificates_4.9.2/sdk/keyvault/Azure.Security.KeyVault.Certificates/CHANGELOG.md
4.11.2 — https://github.com/Azure/azure-sdk-for-net/blob/Azure.Security.KeyVault.Secrets_4.11.2/sdk/keyvault/Azure.Security.KeyVault.Secrets/CHANGELOG.md
4.8.2 — https://github.com/Azure/azure-sdk-for-net/blob/Azure.Security.KeyVault.Administration_4.8.2/sdk/keyvault/Azure.Security.KeyVault.Administration/CHANGELOG.md
Vulnerabilities 1
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Medium 5.9
Azure Key Vault Information Disclosure Vulnerability
Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.
Revision history
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#1
Information published.
References
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CVE-2026-88132 Azure Key Vault Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88132
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss