Denial of Service via OOM vulnerability in Apache ActiveMQ, ActiveMQ Broker.
An authenticated OpenWire client that sends a ConsumerInfo for a temporary queue/topic owned by another connection is rejected with InvalidDestinationException, but the rejected Subscription is left behind in the region's subscriptions map. Repeating the request leaks broker heap until OOM because the broker does not clean up the rejected subscriptions in the map.
This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; ActiveMQ Broker: from 6.0.0 before 6.3.3, before 5.19.12.
Users are recommended to upgrade to version 6.4.0, 6.3.3, or 5.19.12, which fixes the issue.
An authenticated OpenWire client that sends a ConsumerInfo for a temporary queue/topic owned by another connection is rejected with InvalidDestinationException, but the rejected Subscription is left behind in the region's subscriptions map. Repeating the request leaks broker heap until OOM because the broker does not clean up the rejected subscriptions in the map.
This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; ActiveMQ Broker: from 6.0.0 before 6.3.3, before 5.19.12.
Users are recommended to upgrade to version 6.4.0, 6.3.3, or 5.19.12, which fixes the issue.
Metrics
Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 04 Nov 2026 12:00:00 +0000
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Apache
Apache activemq Apache activemq Broker |
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Apache
Apache activemq Apache activemq Broker |
Wed, 04 Nov 2026 10:45:00 +0000
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Wed, 04 Nov 2026 09:45:00 +0000
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| Description | Denial of Service via OOM vulnerability in Apache ActiveMQ, ActiveMQ Broker. An authenticated OpenWire client that sends a ConsumerInfo for a temporary queue/topic owned by another connection is rejected with InvalidDestinationException, but the rejected Subscription is left behind in the region's subscriptions map. Repeating the request leaks broker heap until OOM because the broker does not clean up the rejected subscriptions in the map. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; ActiveMQ Broker: from 6.0.0 before 6.3.3, before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3, or 5.19.12, which fixes the issue. | |
| Title | Apache ActiveMQ, ActiveMQ Broker: Repeated rejected temporary destination consumer requests can lead to broker OOM | |
| Weaknesses | CWE-401 | |
| References |
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Projects
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-11-04T10:10:18.513Z
Reserved: 2026-10-11T19:04:09.189Z
Link: CVE-2026-108949
No data.
Status : Awaiting Analysis
Published: 2026-11-04T10:17:24.160
Modified: 2026-11-04T14:10:09.713
Link: CVE-2026-108949
No data.
OpenCVE Enrichment
Updated: 2026-11-04T11:45:12Z
Weaknesses