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Message-ID: <9f1296ff-7fcd-d2d2-72e5-4e7ef2bad1c4@apache.org>
Date: Sun, 31 May 2026 16:18:07 +0000
From: "Christopher L. Shannon" <cshannon@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-49270: Apache ActiveMQ Broker, Apache ActiveMQ, Apache
ActiveMQ All: Durable Subscription Disclosure via Crafted BrokerInfo
(OpenWire)
Severity: moderate
Affected versions:
- Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 5.14.0 before 5.19.7
- Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.0.0 before 6.2.6
- Apache ActiveMQ (org.apache.activemq:activemq-all) 5.14.0 before 5.19.7
- Apache ActiveMQ (org.apache.activemq:activemq-all) 6.0.0 before 6.2.6
- Apache ActiveMQ All (org.apache.activemq:apache-activemq) 5.14.0 before 5.19.7
- Apache ActiveMQ All (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.6
Description:
Exposure of Sensitive Information Through Metadata vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.
Brokers that are configured with a network connector with syncDurableSubs set to true, are vulnerable to an unauthenticated attacker who can receive a list of all durable topic subscriptions in the broker, including client identifiers, subscription names, topic destinations, and JMS selector expressions, by sending a BrokerInfo command. The broker incorrectly responds without first ensuring the connection is authenticated.
This issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6.
Users are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue.
Credit:
Basel Khaled (finder)
References:
https://activemq.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-49270
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