Path traversal in Apache ActiveMQ Client
Priority LOW 20CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Partial Red Hat: 9 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-22 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00426 37th percentileScored 2026-11-07
Fix Partial Apache ActiveMQ Client (Apache Software Foundation): 5.19.3, 6.2.2Apache ActiveMQ Broker (Apache Software Foundation): 5.19.3, 6.2.2+7 more productsRed Hat: 9 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache ActiveMQ Client | before 5.19.3; 6.0.0 to before 6.2.2 | 5.19.3, 6.2.2 | Patch available | CNA |
| Apache | Apache ActiveMQ Broker | before 5.19.3; 6.0.0 to before 6.2.2 | 5.19.3, 6.2.2 | Patch available | CNA |
| Apache | Apache ActiveMQ All | before 5.19.3; 6.0.0 to before 6.2.2 | 5.19.3, 6.2.2 | Patch available | CNA |
| Apache | Apache ActiveMQ Web | before 5.19.3; 6.0.0 to before 6.2.2 | 5.19.3, 6.2.2 | Patch available | CNA |
| Apache | Apache ActiveMQ | before 5.19.3; 6.0.0 to before 6.2.2 | 5.19.3, 6.2.2 | Patch available | CNA |
| — | org.apache.activemq:activemq-client (Maven) | before 5.19.3 | 5.19.3 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-client (Maven) | 6.0.0 to before 6.2.2 | 6.2.2 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-broker (Maven) | before 5.19.3 | 5.19.3 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-broker (Maven) | 6.0.0 to before 6.2.2 | 6.2.2 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-all (Maven) | before 5.19.3 | 5.19.3 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-all (Maven) | 6.0.0 to before 6.2.2 | 6.2.2 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-web (Maven) | before 5.19.3 | 5.19.3 | Patch available | GHSA-h2h4-5m64-m273 |
| — | org.apache.activemq:activemq-web (Maven) | 6.0.0 to before 6.2.2 | 6.2.2 | Patch available | GHSA-h2h4-5m64-m273 |
- Apache ActiveMQ Client VendorApache Affected before 5.19.3; 6.0.0 to before 6.2.2 Fixed in 5.19.3, 6.2.2 Patch available CNA
- Apache ActiveMQ Broker VendorApache Affected before 5.19.3; 6.0.0 to before 6.2.2 Fixed in 5.19.3, 6.2.2 Patch available CNA
- Apache ActiveMQ All VendorApache Affected before 5.19.3; 6.0.0 to before 6.2.2 Fixed in 5.19.3, 6.2.2 Patch available CNA
- Apache ActiveMQ Web VendorApache Affected before 5.19.3; 6.0.0 to before 6.2.2 Fixed in 5.19.3, 6.2.2 Patch available CNA
- Apache ActiveMQ VendorApache Affected before 5.19.3; 6.0.0 to before 6.2.2 Fixed in 5.19.3, 6.2.2 Patch available CNA
- org.apache.activemq:activemq-client (Maven) Vendor— Affected before 5.19.3 Fixed in 5.19.3 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-client (Maven) Vendor— Affected 6.0.0 to before 6.2.2 Fixed in 6.2.2 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-broker (Maven) Vendor— Affected before 5.19.3 Fixed in 5.19.3 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-broker (Maven) Vendor— Affected 6.0.0 to before 6.2.2 Fixed in 6.2.2 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-all (Maven) Vendor— Affected before 5.19.3 Fixed in 5.19.3 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-all (Maven) Vendor— Affected 6.0.0 to before 6.2.2 Fixed in 6.2.2 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-web (Maven) Vendor— Affected before 5.19.3 Fixed in 5.19.3 Patch available GHSA-h2h4-5m64-m273
- org.apache.activemq:activemq-web (Maven) Vendor— Affected 6.0.0 to before 6.2.2 Fixed in 6.2.2 Patch available GHSA-h2h4-5m64-m273
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* | before 5.19.3; 6.0.0 to before 6.2.2 | Vulnerable | Apache |
| cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* | before 5.19.3; 6.0.0 to before 6.2.2 | Vulnerable | Apache |
| cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* | before 5.19.3; 6.0.0 to before 6.2.2 | Vulnerable | Apache |
- cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* Versions before 5.19.3; 6.0.0 to before 6.2.2 Vulnerable ·Apache
- cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* Versions before 5.19.3; 6.0.0 to before 6.2.2 Vulnerable ·Apache
- cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* Versions before 5.19.3; 6.0.0 to before 6.2.2 Vulnerable ·Apache
Remediation
- Fix · CNA Apache ActiveMQ Client (Apache Software Foundation) Fixed in 5.19.3, 6.2.2
- Fix · CNA Apache ActiveMQ Broker (Apache Software Foundation) Fixed in 5.19.3, 6.2.2
- Fix · CNA Apache ActiveMQ All (Apache Software Foundation) Fixed in 5.19.3, 6.2.2
- Fix · CNA Apache ActiveMQ Web (Apache Software Foundation) Fixed in 5.19.3, 6.2.2
- Fix · CNA Apache ActiveMQ (Apache Software Foundation) Fixed in 5.19.3, 6.2.2
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-client (Maven) Fixed in 5.19.3 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-client (Maven) Fixed in 6.2.2 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-broker (Maven) Fixed in 5.19.3 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-broker (Maven) Fixed in 6.2.2 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-all (Maven) Fixed in 5.19.3 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-all (Maven) Fixed in 6.2.2 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-web (Maven) Fixed in 5.19.3 Advisory →
- Fix · GHSA-h2h4-5m64-m273 org.apache.activemq:activemq-web (Maven) Fixed in 6.2.2 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat AMQ Broker 7 | Affected | No fix yet: Fix deferred |
| Red Hat Data Grid 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Out of support scope |
| Red Hat Fuse 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-33227
- 2026-10-03 Alias added: GHSA-h2h4-5m64-m273
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More Apache Activemq vulnerabilities
- TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
- TI-2016-02587 The Fileserver web application in Apache ActiveMQ 5.x before 5.14.0 allows remote… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-26494 Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authenticated users could perform RCE via Jolokia MBeans KEVCVSS 3.1HIGH 8.8
- TI-2013-05951 Xstream API versions up to 1.4.6 and version 1.4.10, if the security framework has not… CVSS 3.1CRITICAL 9.8
- TI-2021-04451 XStream is vulnerable to an Arbitrary Code Execution attack CVSS 3.1CRITICAL 9.1
- TI-2021-04446 XStream is vulnerable to an Arbitrary Code Execution attack CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-33227 · CVE Program
- CVE-2026-33227 · NVD
- FIRST EPSS
- GHSA-h2h4-5m64-m273 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-33227 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences