Medium severity · published Oct 13, 2026
CVE-2026-88132
Azure Key Vault Information Disclosure Vulnerability
5.9
CVSS
0.3%
EPSS
No
On KEV
Description
Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AZ
azure-keyvault-administration · Microsoft
4.7.1 before 4.8.2 · source: vendor
AZ
azure-keyvault-certificates · Microsoft
4.11.2 before 4.9.2 · source: vendor
AZ
azure-keyvault-keys · Microsoft
4.11.2 before 4.10.2 · source: vendor
AZ
azure-keyvault-secrets · Microsoft
4.11.2 before 4.11.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88132
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-88132
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88132
More from azure-keyvault-administration
8.2
CVE-2026-85925
Azure Key Vault Client SDK Elevation of Privilege Vulnerability
7.4
CVE-2026-85922
Azure Key Vault Security Feature Bypass Vulnerability