CVE-2026-49270: CWE-1230 Exposure of Sensitive Information Through Metadata in Apache Software Foundation Apache ActiveMQ Broker
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.
AI Analysis
Technical Summary
Apache ActiveMQ Broker versions prior to 5.19.7 and from 6.0.0 before 6.2.6 have a vulnerability (CVE-2026-49270) where, if configured with a network connector with syncDurableSubs set to true, the broker improperly responds to unauthenticated BrokerInfo commands by disclosing a list of all durable topic subscriptions. This includes sensitive metadata such as client identifiers, subscription names, topic destinations, and JMS selector expressions. The root cause is the broker failing to authenticate the connection before responding. The issue is fixed in versions 5.19.7 and 6.2.6.
Potential Impact
An unauthenticated attacker can retrieve sensitive metadata about durable topic subscriptions on the broker, potentially exposing client identifiers and subscription details. This information disclosure could aid attackers in further reconnaissance or targeted attacks. There is no indication of direct code execution or denial of service from this vulnerability.
Mitigation Recommendations
Users should upgrade Apache ActiveMQ Broker to version 5.19.7 or 6.2.6 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor advisory recommending these versions.
CVE-2026-49270: CWE-1230 Exposure of Sensitive Information Through Metadata in Apache Software Foundation Apache ActiveMQ Broker
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.
CVSS v3.1
Score 5.9medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache ActiveMQ Broker versions prior to 5.19.7 and from 6.0.0 before 6.2.6 have a vulnerability (CVE-2026-49270) where, if configured with a network connector with syncDurableSubs set to true, the broker improperly responds to unauthenticated BrokerInfo commands by disclosing a list of all durable topic subscriptions. This includes sensitive metadata such as client identifiers, subscription names, topic destinations, and JMS selector expressions. The root cause is the broker failing to authenticate the connection before responding. The issue is fixed in versions 5.19.7 and 6.2.6.
Potential Impact
An unauthenticated attacker can retrieve sensitive metadata about durable topic subscriptions on the broker, potentially exposing client identifiers and subscription details. This information disclosure could aid attackers in further reconnaissance or targeted attacks. There is no indication of direct code execution or denial of service from this vulnerability.
Mitigation Recommendations
Users should upgrade Apache ActiveMQ Broker to version 5.19.7 or 6.2.6 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor advisory recommending these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-28T18:51:45.713Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1d4e79e29bf47b50cd4b57
Added to database: 6/1/2026, 9:18:49 AM
Last enriched: 6/1/2026, 9:34:49 AM
Last updated: 6/2/2026, 5:06:09 AM
Views: 11
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