CVE-2026-59878

Summary

Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.

A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.

Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache ActiveMQ AMQP0 < 5.19.9affected
Apache Software FoundationApache ActiveMQ AMQP6.0.0 < 6.2.8affected
Apache Software FoundationApache ActiveMQ0 < 5.19.9affected
Apache Software FoundationApache ActiveMQ6.0.0 < 6.2.8affected
Apache Software FoundationApache ActiveMQ All0 < 5.19.9affected
Apache Software FoundationApache ActiveMQ All6.0.0 < 6.2.8affected

Weaknesses

  • CWE-20: CWE-20 Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References