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CVE-2026-33117

33
FAUCET Score

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.

First published: May 12, 2026Last modified: May 22, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 4.10.6CPE matchmatch criteria
cpe:2.3:a:microsoft:azure_sdk_for_java:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 16th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: com.azure:azure-security-keyvault-keysFixed in: 4.10.6
microsoftpatch availablevia msrc
Product: Azure SDK for JavaFixed in: 4.10.6
View patch
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

mavenGHSA-97jf-46m3-8953critical

Security feature bypass vulnerability in Azure Key Vault Keys library for Java

May 12, 2026
microsoft2026-May/CVE-2026-33117Important

Azure SDK for Java Security Feature Bypass Vulnerability

May 12, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-33117
Vendor Advisory