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High 7.5Published Jul 28, 2026

CVE-2026-59878Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.

Updated under an hour ago ()

Does this affect you?

It affects apache activemq and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-20
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Aug 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
apache activemq
apache:activemq
before 5.19.9; from 6.0.0 before 6.2.8
NVD
apache activemq_all
apache:activemq_all
before 5.19.9; from 6.0.0 before 6.2.8
NVD
apache activemq_amqp
apache:activemq_amqp
before 5.19.9; from 6.0.0 before 6.2.8
NVD

References

  • mailing-list, vendor-advisory
  • mailing-list, third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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