CVE-2026-103582
Description
A flaw was found in Apache NMS ActiveMQ. The OpenWire protocol parsing component does not properly validate incoming frame sizes or verify that decoded length fields fit within the received frame. A malicious or compromised broker, or an attacker capable of modifying unencrypted network traffic, can send a specially crafted frame with oversized length values. This issue can trigger excessive memory allocation and crash the client application, resulting in a Denial of Service (DoS).
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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