Vulnerability Description
Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8. Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Activemq | < 5.19.9 |
| Apache | Activemq All | < 5.19.9 |
| Apache | Activemq Amqp | < 5.19.9 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/dnyx4d2oldshcj4lthso7b53y4bqmjvnMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/27/7Mailing ListThird Party Advisory
FAQ
What is CVE-2026-59878?
CVE-2026-59878 is a vulnerability with a CVSS score of 7.5 (HIGH). Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of...
How severe is CVE-2026-59878?
CVE-2026-59878 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-59878?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Activemq, Apache Activemq All, Apache Activemq Amqp.