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BIT-activemq-2026-40046 — Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT: Missing fix for CVE-2025-66168: MQTT control packet remaini…

Affected: Bitnami: activemq

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT.

The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 (and future 5.19.x) releases but was missed for all 6.0.0+ versions.

This issue affects Apache ActiveMQ: from 6.0.0 before 6.2.4; Apache ActiveMQ All: from 6.0.0 before 6.2.4; Apache ActiveMQ MQTT: from 6.0.0 before 6.2.4.

Users are recommended to upgrade to version 6.2.4 or a 5.19.x version starting with 5.19.2 or later (currently latest is 5.19.5), which fixes the issue.

certfr-2026-avi-0933 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2026-avi-0933

EUVD-2026-290493

fkie_cve-2026-40046

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT.

The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 (and future 5.19.x) releases but was missed for all 6.0.0+ versions.

This issue affects Apache ActiveMQ: from 6.0.0 before 6.2.4; Apache ActiveMQ All: from 6.0.0 before 6.2.4; Apache ActiveMQ MQTT: from 6.0.0 before 6.2.4.

Users are recommended to upgrade to version 6.2.4 or a 5.19.x version starting with 5.19.2 or later (currently latest is 5.19.5), which fixes the issue.

GHSA-xvqc-pp94-fmpx — Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT vulnerable to Integer Overflow or Wraparound

Affected: Maven: org.apache.activemq:apache-activemq, Maven: org.apache.activemq:activemq-all, Maven: org.apache.activemq:activemq-mqtt

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT.

The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 (and future 5.19.x) releases but was missed for all 6.0.0+ versions. This issue affects Apache ActiveMQ: from 6.0.0 before 6.2.4; Apache ActiveMQ All: from 6.0.0 before 6.2.4; Apache ActiveMQ MQTT: from 6.0.0 before 6.2.4.

Users are recommended to upgrade to version 6.2.4 or a 5.19.x version starting with 5.19.2 or later (currently latest is 5.19.5), which fixes the issue.

jvndb-2026-006408

Apache ActiveMQ series provided by The Apache Software Foundation does not properly validate the remaining length field of MQTT packets, which may lead to integer overflow and misinterpretation of MQTT packets.<a href='https://cwe.mitre.org/data/definitions/190.html' target='_blank'></a><ul><li>Integer overflow or wraparound (CWE-190) - CVE-2025-66168, CVE-2026-40046</li></ul>Gai Tanaka of Mitsui Bussan Secure Directions, Inc. reported this vulnerability in version 6.2.0 to the developer and IPA under Information Security Early Warning Partnership. JPCERT/CC coordinated with the developer to publish the advisory.

OESA-2026-2124 — activemq security update

Affected: openEuler:22.03-LTS-SP4: activemq

The most popular and powerful open source messaging and Integration Patterns server. Security Fix(es):

['Severity: low \n\nAffected versions:\n\n- Apache ActiveMQ Client (org.apache.activemq:activemq-client) before 5.19.3\n- Apache ActiveMQ Client (org.apache.activemq:activemq-client) 6.0.0 before 6.2.2\n- Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) before 5.19.3\n- Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.0.0 before 6.2.2\n- Apache ActiveMQ (org.apache.activemq:activemq-all) before 5.19.3\n- Apache ActiveMQ (org.apache.activemq:activemq-all) 6.0.0 before 6.2.2\n- Apache ActiveMQ Web (org.apache.activemq:activemq-web) before 5.19.3\n- Apache ActiveMQ Web (org.apache.activemq:activemq-web) 6.0.0 before 6.2.2\n\nDescription:\n\nImproper validation and restriction of a classpath path name vulnerability in Apache ActiveMQ Client, Apache ActiveMQ \nBroker, Apache ActiveMQ All.\n\nIn two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user \nprovided "key" value could be constructed to traverse the classpath due to path concatenation. As a result, the \napplication is exposed to a classpath path resource loading vulnerability that could potentially be chained together \nwith another attack to lead to exploit.This issue affects Apache ActiveMQ Client: before 5.19.3, from 6.0.0 before \n6.2.2; Apache ActiveMQ Broker: before 5.19.3, from 6.0.0 before 6.2.2; Apache Activ…

UBUNTU-CVE-2026-40046

Affected: Ubuntu:Pro:16.04:LTS: activemq, Ubuntu:Pro:18.04:LTS: activemq, Ubuntu:Pro:20.04:LTS: activemq, Ubuntu:Pro:22.04:LTS: activemq, Ubuntu:24.04:LTS: activemq, Ubuntu:25.10: activemq, Ubuntu:26.04:LTS: activemq

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 (and future 5.19.x) releases but was missed for all 6.0.0+ versions. This issue affects Apache ActiveMQ: from 6.0.0 before 6.2.4; Apache ActiveMQ All: from 6.0.0 before 6.2.4; Apache ActiveMQ MQTT: from 6.0.0 before 6.2.4. Users are recommended to upgrade to version 6.2.4 or a 5.19.x version starting with 5.19.2 or later (currently latest is 5.19.5), which fixes the issue.

WID-SEC-W-2026-1040 — Apache ActiveMQ: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apache ActiveMQ ausnutzen, um einen Denial of Service Angriff durchzuführen oder um nicht näher spezifizierte Auswirkungen zu verursachen