CVE-2026-50559

Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle matrix parameters past the security layer, and using encoded slashes (%2F) or backslashes (%5C) to access protected static resources. This is a distinct issue from CVE-2026-39852, which addressed only literal semicolon stripping. Versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2 contain a patch.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v

Configurations

No configuration.

History

19 Jun 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 21:17

Updated : 2026-06-22 19:17

NVD link : CVE-2026-50559

Mitre link : CVE-2026-50559

CVE.ORG link : CVE-2026-50559

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

CWE-863

Incorrect Authorization

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