CVE-2026-53917

Summary

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker.

An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects 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; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: 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 Software

VendorProductVersion RangeStatus
Apache Software FoundationApache ActiveMQ0 < 5.19.8affected
Apache Software FoundationApache ActiveMQ6.0.0 < 6.2.7affected
Apache Software FoundationApache ActiveMQ All0 < 5.19.8affected
Apache Software FoundationApache ActiveMQ All6.0.0 < 6.2.7affected
Apache Software FoundationApache ActiveMQ Client0 < 5.19.8affected
Apache Software FoundationApache ActiveMQ Client6.0.0 < 6.2.7affected
Apache Software FoundationApache ActiveMQ Broker0 < 5.19.8affected
Apache Software FoundationApache ActiveMQ Broker6.0.0 < 6.2.7affected

Weaknesses

  • CWE-789: CWE-789 Memory Allocation with Excessive Size Value

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References