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CVE-2026-33117: Security feature bypass vulnerability in Azure Key Vault Keys library for Java

May 12, 2026 (updated June 2, 2026)

The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly. In affected applications that use the vulnerable local cryptography path, specially crafted encrypted input may bypass integrity verification checks. Operations delegated to the Key Vault service are not affected. The issue is addressed in version 4.10.6.

References

  • github.com/Azure/azure-sdk-for-java/commit/1b5c5c79d85a5c9a9cfd07f6cdff6fd0f50eccf9
  • github.com/Azure/azure-sdk-for-java/pull/48476
  • github.com/advisories/GHSA-97jf-46m3-8953
  • msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33117
  • nvd.nist.gov/vuln/detail/CVE-2026-33117

Code Behaviors & Features

Detect and mitigate CVE-2026-33117 with GitLab Dependency Scanning

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Affected versions

All versions before 4.10.6

Fixed versions

  • 4.10.6

Solution

Upgrade to version 4.10.6 or above.

Impact 9.1 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-287: Improper Authentication
  • CWE-347: Improper Verification of Cryptographic Signature

Source file

maven/com.azure/azure-security-keyvault-keys/CVE-2026-33117.yml

Spotted a mistake? Edit the file on GitLab.

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