Allocation of Resources Without Limits or Throttling Affecting org.apache.activemq:activemq-all package, versions [,5.19.5)[6.0.0,6.2.4)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Allocation of Resources Without Limits or Throttling vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-JAVA-ORGAPACHEACTIVEMQ-15992453
- published12 Apr 2026
- disclosed10 Apr 2026
- creditUnknown
Introduced: 10 Apr 2026
CVE-2026-39304 (opens in a new tab)How to fix?
Upgrade org.apache.activemq:activemq-all to version 5.19.5, 6.2.4 or higher.
Overview
org.apache.activemq:activemq-all is a package that puts together an ActiveMQ jar bundle.
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in NIO SSL transport processing. An attacker can cause the broker to exhaust all available memory and disrupt service availability by rapidly triggering TLS 1.3 handshake KeyUpdates from a client connection.