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High severity7.5NVD Advisory· Published Jul 28, 2026· Updated Aug 5, 2026

CVE-2026-59878

CVE-2026-59878

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

7
  • Apache/Activemqinferred3 versions
    <5.19.9,>=6.0.0,<6.2.8+ 2 more
    • (no CPE)range: <5.19.9,>=6.0.0,<6.2.8
    • cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*range: <5.19.9
    • (no CPE)range: <5.19.9, >=6.0.0 <6.2.8
  • Apache/Activemq All
    cpe:2.3:a:apache:activemq_all:*:*:*:*:*:*:*:*
    Range: <5.19.9
  • Apache/Activemq Amqp2 versions
    cpe:2.3:a:apache:activemq_amqp:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:apache:activemq_amqp:*:*:*:*:*:*:*:*range: <5.19.9
    • (no CPE)range: <5.19.9, >=6.0.0 <6.2.8
  • osv-coords
    pkg:bitnami/activemq
    Range: < 5.19.9

Patches

Vulnerability mechanics

References

2

News mentions

1