CVE-2026-108949: medium-severity vulnerability in Apache ActiveMQ
Apache ActiveMQ, ActiveMQ Broker: Repeated rejected temporary destination consumer requests can lead to broker OOM
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Apache Software Foundation · ActiveMQ BrokerApache Software Foundation · Apache ActiveMQRelated CVEs — Apache ActiveMQ
In the same product, most dangerous first.
CVE-2023-46604CRITICALApache ActiveMQ, Apache ActiveMQ Legacy OpenWire Module: Unbounded deserialization causes ActiveMQ to be vulnerable to a remote code execution (RCE) attackEPSS 100.0%KEVCVE-2026-34197HIGHApache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authenticated users could perform RCE via Jolokia MBeansEPSS 98.3%KEVCVE-2022-41678—Apache ActiveMQ: Insufficient API restrictions on Jolokia allow authenticated users to perform RCEEPSS 85.7%CVE-2018-8006—CVE-2018-8006EPSS 55.7%CVE-2017-15709—CVE-2017-15709EPSS 22.8%CVE-2021-26117—ActiveMQ: LDAP-Authentication does not verify passwords on servers with anonymous bindEPSS 11.3%