Vulnerability GHSA-f77w-px59-cqf5

High Risk
HIGH RISK
CVSS Score: 7.5
Score Range: 7.0–8.9
High severity vulnerabilities (CVSS 7.0–8.9). Serious vulnerabilities that should be prioritized soon after critical fixes.
4 months ago
June 30, 2026 at 12:31 PM UTC
Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker have Memory Allocation with Excessive Size Value vulnerability
4.1.2 - 5.19.7 and 6.0.0 - 6.2.6
4.1.2 - 5.19.7 and 6.0.0 - 6.2.6

Summary

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker have Memory Allocation with Excessive Size Value vulnerability

Details

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker.

An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7.

Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Timeline

Published
4 months ago
June 30, 2026 at 12:31 PM UTC
Fixed (5.19.8)
Unknown
Unknown
Fixed (6.2.7)
Unknown
Unknown
Fixed (5.19.8)
Unknown
Unknown
Fixed (6.2.7)
Unknown
Unknown
Fixed (5.19.8)
Unknown
Unknown
Fixed (6.2.7)
Unknown
Unknown
Fixed (5.19.8)
Unknown
Unknown
Fixed (6.2.7)
Unknown
Unknown
Last Modified
4 hours ago
November 04, 2026 at 04:25 PM UTC