CVE-2026-50750

Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270

CVSS 7.5 HIGHEPSS 0.5%CWE-400

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

30 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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 ActiveMQ Apache Software Foundation · Apache ActiveMQ All Apache Software Foundation · Apache ActiveMQ Broker

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References

https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr