Medium WID-SEC-2026-2124 8 CVEs

Apache ActiveMQ: Mehrere Schwachstellen

Published Jun 29, 2026 · Updated Sep 21, 2026 · Revision 4 · de-DE

Vendor: Apache Vendor: Red Hat Product: ActiveMQ Product: Enterprise Linux Platform: Windows

Summary

Ein Angreifer kann mehrere Schwachstellen in Apache ActiveMQ ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen oder einen Denial-of-Service-Zustand zu verursachen.

Product

Apache ActiveMQ ist ein Open Source Message Broker, der den Transport von Nachrichten zwischen verschiedenen Programmen bewerkstelligt.

Vulnerabilities 8

High 8.1

CVE-2026-49877

Apache ActiveMQ: Authenticated web users retain admin access by default in the Web Console

Improper Authorization vulnerability in Apache ActiveMQ. An authenticated low-privilege Web Console user by default can access /admin/* paths in the Web Console. The default Jetty settings incorrectly did not limit those paths to only admins. This issue affec…

Apache Software Foundation Apache ActiveMQ activemq activemq Debian Ubuntu Maven

Jun 30, 2026
High 7.5

CVE-2026-49432

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For th…

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Stomp Debian Ubuntu Maven

Jun 30, 2026
High 7.5

CVE-2026-49434

Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: LdapNetworkConnector instantiates denied transports and a remote-properties broker

Improper Input Validation vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. An attacker that has access to publish or modify entries in LDAP that match the configured searchBase and searchFilter can instantiate denied transports i…

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Broker Debian Ubuntu Maven

Jun 30, 2026
High 7.5

CVE-2026-50734

Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire memory-allocation DoS during wire format negotiation

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. …

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Client Debian Ubuntu Wolfi Maven

Jun 30, 2026
High 7.5

CVE-2026-50750

Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. Following the fix for CVE-2026-49270 an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sen…

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Broker Debian Ubuntu Maven

Jun 30, 2026
High 7.5

CVE-2026-53916

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them…

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Stomp Debian Ubuntu

Jun 30, 2026
High 7.5

CVE-2026-53917

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker: Unbounded memory allocation in OpenWire property unmarshalling

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 val…

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Broker Debian Ubuntu Wolfi Maven

Jun 30, 2026
High 7.5

CVE-2026-54475

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Temporary destination ownership takeover

Missing Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. Apache ActiveMQ Classic temporary destinations are expected to be isolated to the connection that created them. The isolation can be broken as this is only ch…

Apache Software Foundation Apache ActiveMQ Apache ActiveMQ All Apache ActiveMQ Broker Debian Ubuntu Maven

Jun 30, 2026

Revision history

2026-09-21 #4
Neue Updates von Red Hat aufgenommen
2026-09-10 #3
Neue Updates von Red Hat aufgenommen
2026-06-30 #2
Referenz(en) aufgenommen: EUVD-2026-40285, EUVD-2026-40276, EUVD-2026-40277, EUVD-2026-40278, EUVD-2026-40282, EUVD-2026-40283, EUVD-2026-40284, EUVD-2026-40280
2026-06-29 #1
Initiale Fassung

References

Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-49432-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-49434-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-49877-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-50734-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-50750-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-50760-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-53916-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-53917-announcement.txt
Apache Announcement vom 2026-06-29
https://activemq.apache.org/security-advisories.data/CVE-2026-54475-announcement.txt
Red Hat Security Advisory RHSA-2026:66488 vom 2026-09-10
https://access.redhat.com/errata/RHSA-2026:66488
Red Hat Security Advisory RHSA-2026:66545 vom 2026-09-11
https://access.redhat.com/errata/RHSA-2026:66545
Red Hat Security Advisory RHSA-2026:69459 vom 2026-09-21
https://access.redhat.com/errata/RHSA-2026:69459