| Name | CVE-2026-50750 |
| Description | 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1141385 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| activemq (PTS) | bullseye | 5.16.1-1 | vulnerable |
| bullseye (security) | 5.16.1-1+deb11u2 | vulnerable | |
| bookworm, bookworm (security) | 5.17.2+dfsg-2+deb12u1 | vulnerable | |
| sid, trixie | 5.17.6+dfsg-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| activemq | source | (unstable) | (unfixed) | 1141385 |
https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr