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Vulnerability · Published Jun 23, 2025 · Assigned by GitHub_M

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

Medium 6.4

In plain English

A medium-severity security flaw in quarkus from quarkusio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)0.3%top 79.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenio.quarkus:quarkus-vertx3.15.6GHSA-9623-mj7j-p9v4
Mavenio.quarkus:quarkus-vertx3.20.2GHSA-9623-mj7j-p9v4
Mavenio.quarkus:quarkus-vertx3.24.1GHSA-9623-mj7j-p9v4

Affected products (as reported)

VendorProductVersions
quarkusio quarkus >= 3.21.0.CR1, < 3.24.1>= 3.16.0.CR1, < 3.20.2< 3.15.6

Weakness: CWE-668 · Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References