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.
References
| Link | Resource |
|---|---|
| https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/04/06/4 | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
20 Apr 2026, 16:50
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt - Vendor Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2026/04/06/4 - Mailing List, Third Party Advisory | |
| CPE | cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* |
|
| First Time |
Apache activemq Broker
Apache activemq Apache Apache activemq Web |
08 Apr 2026, 16:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) 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. |
07 Apr 2026, 15:17
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.3 |
07 Apr 2026, 09:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-07 09:16
Updated : 2026-04-20 16:50
NVD link : CVE-2026-33227
Mitre link : CVE-2026-33227
CVE.ORG link : CVE-2026-33227
JSON object : View
Products Affected
apache
- activemq_web
- activemq_broker
- activemq
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')