CVE-2026-49434
Published:June 30, 2026
Updated:July 21, 2026
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.
Affected Packages
org.apache.activemq:activemq-all (JAVA):
Affected version(s) >=4.1.2 <5.19.8Fix Suggestion:
Update to version 5.19.8org.apache.activemq:apache-activemq (JAVA):
Affected version(s) >=4.1.0-incubator <5.19.8Fix Suggestion:
Update to version 5.19.8org.apache.activemq:activemq-all (JAVA):
Affected version(s) >=6.0.0 <6.2.7Fix Suggestion:
Update to version 6.2.7org.apache.activemq:activemq-broker (JAVA):
Affected version(s) >=5.8.0 <5.19.8Fix Suggestion:
Update to version 5.19.8org.apache.activemq:activemq-broker (JAVA):
Affected version(s) >=6.0.0 <6.2.7Fix Suggestion:
Update to version 6.2.7Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
0.66