🔐 CVE Alert

CVE-2025-54539

CRITICAL 9.8

Apache ActiveMQ NMS AMQP Client: Deserialization of Untrusted Data

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

A Deserialization of Untrusted Data vulnerability exists in the Apache ActiveMQ NMS AMQP Client. This issue affects all versions of Apache ActiveMQ NMS AMQP up to and including 2.3.0, when establishing connections to untrusted AMQP servers. Malicious servers could exploit unbounded deserialization logic present in the client to craft responses that may lead to arbitrary code execution on the client side. Although version 2.1.0 introduced a mechanism to restrict deserialization via allow/deny lists, the protection was found to be bypassable under certain conditions. In line with Microsoft’s deprecation of binary serialization in .NET 9, the project is evaluating the removal of .NET binary serialization support from the NMS API entirely in future releases. Mitigation and Recommendations: Users are strongly encouraged to upgrade to version 2.4.0 or later, which resolves the issue. Additionally, projects depending on NMS-AMQP should migrate away from .NET binary serialization as part of a long-term hardening strategy.

CWE CWE-502
Vendor apache software foundation
Product apache activemq nms amqp client
Published Oct 16, 2025
Last Updated Feb 26, 2026
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Affected Versions

Apache Software Foundation / Apache ActiveMQ NMS AMQP Client
0 ≤ 2.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
lists.apache.org: https://lists.apache.org/thread/9k684j07ljrshy3hxwhj5m0xjmkz1g2n openwall.com: http://www.openwall.com/lists/oss-security/2025/10/15/3

Credits

Security Research Team @ Endor Labs