CVE-2025-49574 MEDIUM

CVE-2025-49574: Quarkus potential data leak when duplicating a duplicated context

Vendor Quarkusio
Product quarkus
Weakness CWE-668
Published June 23, 2025
Last update December 22, 2025

CVSS base score

6.4/10
Attack vector Adjacent
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Quarkus is a Cloud Native, (Linux) Container First framework for writing Java applications. In versions prior to 3.24.1, 3.20.2, and 3.15.6, there is a potential data leak when duplicating a duplicated context. Quarkus extensively uses the Vert.x duplicated context to implement context propagation. With the new semantic data from one transaction can leak to the data from another transaction. From a Vert.x point of view, this new semantic clarifies the behavior. A significant amount of data is stored in the duplicated context, including request scope, security details, and metadata. Duplicating a duplicated context is rather rare and is only done in a few places. This issue has been patched in version 3.24.1, 3.20.2, and 3.15.6.

Key dates

02Disclosure timeline

June 23, 2025 CVE published
December 22, 2025 Record updated