Azure Key Vault Security Feature Bypass Vulnerability
Published October 13, 2026Updated October 13, 2026
Source data
Overview
Weak authentication in Azure Key Vault allows an unauthorized attacker to bypass a security feature over a network.
Impact & technical details
Security Feature Bypass
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 kind of security feature could be bypassed by successfully exploiting this vulnerability? Successful exploitation could allow an attacker to bypass the challenge-response validation that verifies a Key Vault authentication challenge before it is cached. This could allow a client to send an access token or request data to an untrusted host instead of the intended Key Vault service.
- CVSS base score
- 7.4 / 10
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Highest base score supplied by MSRC for this record; the vector belongs to that score. Ratings can vary by product. Microsoft Important is displayed as High; Moderate is displayed as Medium.
Affected products
- azure-keyvault-administration
- azure-keyvault-certificates
- azure-keyvault-keys
- azure-keyvault-secrets
- azure-keyvault-securitydomain
- azure_security_keyvault_certificates (Rust)
- azure_security_keyvault_keys (Rust)
- azure_security_keyvault_secrets (Rust)
Source guidance
Remediation
- Release Notes
Patch availability is not confirmed by this dataset. Consult the vendor before selecting a remediation.
GTP recommendation · Rule-based guidance
Recommended next step
Review affected Microsoft products and apply the applicable security updates through your organization's normal patch-management process. Confirm availability and prerequisites in the Microsoft advisory.
Authoritative sources & updates
Findings and update information come from the linked publishers. GTP compiles the public record and provides the recommendation above. CVSS ratings shown here come from Microsoft. NVD references provide additional public context.
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Security bulletins are provided for informational purposes and compiled from authoritative public sources. Vulnerability applicability varies by environment. Validate affected products, configuration, compatibility requirements, and vendor guidance before making production changes.