Full Report
Apache ActiveMQ security advisory (AV26-330)
Analysis Summary
# Vulnerability: Apache ActiveMQ Broker Information Exposure
## CVE Details
- **CVE ID:** CVE-2026-34197
- **CVSS Score:** Not explicitly provided in advisory (Estimated High based on typical Broker vulnerabilities)
- **CWE:** Not specified
## Affected Systems
- **Products:** Apache ActiveMQ Broker
- **Versions:**
- Versions prior to 5.19.4
- 6.0.0 versions prior to 6.2.3
- **Configurations:** Systems running the Broker component without the specified security updates.
## Vulnerability Description
While the specific technical root cause (e.g., deserialization, path traversal, or improper authentication) is not detailed in the high-level Cyber Centre summary, CVE-2026-34197 identifies a security flaw within the Apache ActiveMQ Broker. Based on the version ranges, the vulnerability impacts both the legacy 5.x branch and the modern 6.x branch of the messaging engine.
## Exploitation
- **Status:** PoC availability and "in the wild" status not confirmed in the brief; typically, Apache vulnerabilities of this nature see rapid PoC development.
- **Complexity:** Not specified
- **Attack Vector:** Network (Remote)
## Impact
- **Confidentiality:** Potential Impact
- **Integrity:** Potential Impact
- **Availability:** Potential Impact
## Remediation
### Patches
Apache has released the following versions to address this vulnerability:
- **Apache ActiveMQ 5.19.4**
- **Apache ActiveMQ 6.2.3**
### Workarounds
- No specific workarounds are provided in the advisory. It is highly recommended to upgrade to the patched versions immediately.
- Ensure the Broker is not exposed to the public internet and is protected by restrictive firewall rules behind a VPN or within a trusted network segment.
## Detection
- **Indicators of Compromise:** Monitor for unusual administrative console access or unexpected remote connections to the Broker ports (typically 61616/5672/1883).
- **Detection methods and tools:** Audit application logs for stack traces or errors related to connection handling and authentication.
## References
- **Vendor Advisory:** hxxps[://]activemq[.]apache[.]org/security-advisories.data/CVE-2026-34197-announcement[.]txt
- **Cyber Centre Bulletin:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/apache-activemq-security-advisory-av26-330