CVE-2026-33117

Azure SDK for Java Security Feature Bypass Vulnerability

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.

Affected

Microsoft · Azure SDK for Java

CVSS v3.1 MICROSOFT

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

EPSS

0.50% chance of exploitation in the next 30 days, 41st percentile

Published

2026-05-12

Updated

2026-08-10

Proof-of-concept exploits (1)

• JohannesLks/CVE-2026-503380★ · 2026-07-14

Security advisories

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33117
• advisories/GHSA-97jf-46m3-8953

References

• CVE Record
• NVD entry

Related

• CVE-2025-14558
• CVE-2025-68613
• CVE-2026-23398
• CVE-2026-27654
• CVE-2026-32945
• CVE-2026-33186