CVE-2026-50559
HIGH EPSS 21.1%
Published Jun 19, 20261w ago · Modified Jun 23, 20261w ago
7.5 CVSS 3.1
Published Jun 19, 2026 1w ago
Last Modified Jun 23, 2026 1w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
21.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-287 Improper Authentication Authentication
CWE-863 Incorrect Authorization Authorization
References 1
- github.com https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.