CVE-2026-24457: Arbitrary File Access in Eclipse OpenMQ

The impact of CVE-2026-24457 is significant due to the potential for unauthorized data access and potential Remote Code Execution (RCE). An attacker exploiting this vulnerability can read any file accessible to the OpenMQ process on the server. This could include configuration files, sensitive data, or even system files. The ability to read system files opens the door to further exploitation, potentially allowing an attacker to execute arbitrary code on the server, leading to complete system compromise. The description explicitly mentions the possibility of RCE, making this a high-priority vulnerability to address.

1. Reserved2026-01-23
2. Published2026-03-05
3. Modified2026-03-06
4. EPSS updated2026-03-23

The primary mitigation for CVE-2026-24457 is to upgrade to a patched version of Eclipse OpenMQ. Consult the Eclipse OpenMQ website for the latest available version. If upgrading immediately is not feasible, consider implementing temporary workarounds. Restrict network access to the OpenMQ broker to only authorized clients. Implement strict file permissions on the server to limit the files accessible to the OpenMQ process. Monitor OpenMQ logs for suspicious activity, particularly attempts to access unusual files. While a WAF or proxy cannot directly prevent this file access vulnerability, they can be configured to detect and block suspicious requests targeting the OpenMQ broker.