CVE-2026-59878 Details
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.
A denial-of-service vulnerability has been identified in Apache ActiveMQ AMQP, Apache ActiveMQ, and Apache ActiveMQ All, all versions prior to 5.19.9 and certain 6.x releases. The issue arises from improper input validation in the AMQP NIO connector, allowing a remote unauthenticated peer to send a frame size value that causes NIO threads to fail. If this is done quickly enough, it can exhaust the NIO thread pool, denying service to other connections.
Users are advised to upgrade to Apache ActiveMQ versions 5.19.9, 6.2.8, or 6.3.0, all of which address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 28, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/07/27/7 | CVE | Mailing ListThird Party Advisory |
| https://lists.apache.org/thread/dnyx4d2oldshcj4lthso7b53y4bqmjvn | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache activemq | < 5.19.9 >= 6.0.0, < 6.2.8 |
CPE
Remediation
| |
| apache activemq all | < 5.19.9 >= 6.0.0, < 6.2.8 |
CPE
Remediation
| |
| apache activemq amqp | < 5.19.9 >= 6.0.0, < 6.2.8 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 5, 2026 | Initial Analysis | [email protected] |
| Jul 28, 2026 | CVE Modified | CISA-ADP |
| Jul 28, 2026 | New CVE Received | [email protected] |
| Jul 28, 2026 | CVE Modified | CVE |