Skip to content
Fencer Vulns
high 7.5

CVE-2026-49434 json

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

published 2026-06-30 4 mo ago modified 2026-11-04 4 d ago also BIT-activemq-2026-49434 , EUVD-2026-40285 , GHSA-h5gm-rvw6-2xpx

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

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 inside the broker JVM. This can be used to fetch an attacker URL and spawn a second BrokerService inside the same JVM. This issue affects Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7.

Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Patch / fix

  • maven org.apache.activemq:activemq-broker 5.19.8, 6.2.7
  • maven org.apache.activemq:apache-activemq 5.19.8, 6.2.7
  • maven org.apache.activemq:activemq-all 5.19.8, 6.2.7
  • bitnami activemq 5.19.8, 6.2.7
  • Apache Software Foundation Apache ActiveMQ Broker 5.19.8, 6.2.7
  • Apache Software Foundation Apache ActiveMQ 5.19.8, 6.2.7
  • Apache Software Foundation Apache ActiveMQ All 5.19.8, 6.2.7

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-49434 updated cvss 7.6

org.apache.activemq/activemq-broker: org.apache.activemq/activemq-core: org.apache.activemq/activemq-all: Apache ActiveMQ: Unauthorized broker instantiation via improper input validation in LDAP entri

  • Red Hat AMQ Broker 7 artemis-ra, artemis-cli, artemis-dto, artemis-web, artemis-boot, apache-artemis, +28 more Red Hat AMQ Clients artemis-server, artemis-commons, artemis-journal, artemis-selector, artemis-jdbc-store, artemis-core-client, +3 more Red Hat build of Apache Camel for Spring Boot 4 artemis-mqtt-protocol, activemq-artemis-native, artemis-relocations-parent, libartemis-native-linux-i686, libartemis-native-linux-s390x, libartemis-native-linux-x86_64, +2 more Red Hat Data Grid 8 zipkin-sender-activemq-client, activemq-broker 5.11.1.redhat-00001 Red Hat Enterprise Linux 8 log4j, log4j-jcl, log4j-web, log4j-slf4j Red Hat Fuse 7 activeio-core, activemq-http, activemq-mqtt, activemq-osgi, activemq-pool, activemq-karaf, +11 more
    +5 more products
    Red Hat JBoss Enterprise Application Platform 7 wildfly-messaging-activemq Red Hat JBoss Enterprise Application Platform 8 artemis-cli, artemis-dto, artemis-server, artemis-commons, artemis-journal, artemis-selector, +17 more Red Hat JBoss Enterprise Application Platform Expansion Pack activemq-broker 5.11.1.redhat-00001 Red Hat Satellite 6 candlepin, candlepin-selinux Red Hat Single Sign-On 7 artemis-ra, artemis-cli, artemis-dto, artemis-tools, artemis-server, artemis-commons, +14 more
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.activemq:activemq-broker
<5.19.8
>=6.0.0, <6.2.7
5.19.8
6.2.7
maven org.apache.activemq:apache-activemq
<5.19.8
>=6.0.0, <6.2.7
5.19.8
6.2.7
maven org.apache.activemq:activemq-all
<5.19.8
>=6.0.0, <6.2.7
5.19.8
6.2.7
bitnami activemq
<5.19.8
>=6.0.0, <6.2.7
5.19.8
6.2.7

Affected products

  • Apache Software Foundation Apache ActiveMQ Broker
  • Apache Software Foundation Apache ActiveMQ
  • Apache Software Foundation Apache ActiveMQ All

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.