What is GHSA-9qj4-v6r6-3wmx?

GHSA-9qj4-v6r6-3wmx is a security advisory published by GitHub Security Advisories with High severity. Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ,...

Which CVE IDs does GHSA-9qj4-v6r6-3wmx cover?

GHSA-9qj4-v6r6-3wmx covers the following CVE IDs: CVE-2026-50750. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9qj4-v6r6-3wmx?

GHSA-9qj4-v6r6-3wmx has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-9qj4-v6r6-3wmxHighCVSS 7.5

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ,...

Vendor

GitHub Security Advisories

Published

June 30, 2026

Last Modified

June 30, 2026

🔗 CVE IDs covered (1)

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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-50750
https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr
https://github.com/advisories/GHSA-9qj4-v6r6-3wmx