GHSA-h2h4-5m64-m273
Apache ActiveMQ: Improper validation and restriction of a classpath path name
At a glance
- Published
- Updated
- CVE
- CVE-2026-33227
- Aliases
- BIT-activemq-2026-33227
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
Improper validation and restriction of a classpath path name vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ. 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; Apache ActiveMQ Web: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ: 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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.apache.activemq:activemq-client | introduced 0, fixed 5.19.3 |
| Maven · org.apache.activemq:activemq-client | introduced 6.0.0, fixed 6.2.2 |
| Maven · org.apache.activemq:activemq-broker | introduced 0, fixed 5.19.3 |
| Maven · org.apache.activemq:activemq-broker | introduced 6.0.0, fixed 6.2.2 |
| Maven · org.apache.activemq:activemq-all | introduced 0, fixed 5.19.3 |
| Maven · org.apache.activemq:activemq-all | introduced 6.0.0, fixed 6.2.2 |
| Maven · org.apache.activemq:activemq-web | introduced 0, fixed 5.19.3 |
| Maven · org.apache.activemq:activemq-web | introduced 6.0.0, fixed 6.2.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-33227 ADVISORY
- https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt WEB
- https://github.com/apache/activemq PACKAGE
- http://www.openwall.com/lists/oss-security/2026/04/06/4 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |