cvedb.io
CVE-2026-50734
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-06-30T11:16:29.827 · Last modified 2026-07-02T18:40:36.210

Summary

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. The value is not validate and causes the broker to attempt allocation during pre-auth negotiation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Affected products

apache — activemq

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.