Data Exposure Vulnerability in Quarkus REST Data Panache Component
CVE-2026-121837

4.3MEDIUM

Key Information:

Vendor

Red Hat
Status
Exploit Intelligence
Red Hat Build Of Quarkus
Vendor
CVE Published:
6 November 2026

What is CVE-2026-121837?

A security vulnerability exists in the REST Data Panache component of Quarkus where applying security constraints using the @SecureField annotation on a getter method instead of the field doesn't enforce restrictions adequately. This flaw allows authenticated users to infer sensitive data values by analyzing the records that match specified filter criteria or their order, despite the sensitive values not appearing in the final response.

References

https://access.redhat.com/security/cve/CVE-2026-121837
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2566744
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Emirhan Çatkın for reporting this issue.
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