CVE-2026-50750: high-severity vulnerability in Apache ActiveMQ
Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.7%
Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.
Following the fix for CVE-2026-49270 an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sending a ConnectionInfo, until the broker will crash with OOM.
This issue affects Apache ActiveMQ Broker: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ All: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7.
Users are recommended to upgrade to version 6.2.7, which fixes the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Apache Software Foundation · Apache ActiveMQApache Software Foundation · Apache ActiveMQ AllApache Software Foundation · Apache ActiveMQ BrokerRelated 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 85.8%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%