EUVD-2026-19586
GHSA-h2h4-5m64-m273
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
4Description
Improper validation and restriction of a classpath path name vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All. In two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user provided "key" value could be constructed to traverse the classpath due to path concatenation. As a result, the application is exposed to a classpath path resource loading vulnerability that could potentially be chained together with another attack to lead to exploit.This issue affects Apache ActiveMQ Client: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Broker: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ All: before 5.19.3, from 6.0.0 before 6.2.2. Users are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue. Note: 5.19.3 and 6.2.2 also fix this issue, but that is limited to non-Windows environments due to a path separator resolution bug fixed in 5.19.4 and 6.2.3.
Analysis
Improper path validation in Apache ActiveMQ Client and Broker allows authenticated users to traverse the classpath via crafted 'key' values in Stomp consumer creation and Web console message browsing operations, potentially enabling information disclosure or chaining with secondary attacks for greater impact. Affects ActiveMQ Client/Broker versions before 5.19.3 and 6.0.0–6.2.1; patch available in 5.19.4 and 6.2.3 (5.19.3/6.2.2 have platform-specific limitations). …
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