Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') Affecting eap7-jackson-databind package, versions <0:2.18.8-1.redhat_00003.1.el7eap


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.52% (45th percentile)

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  • Snyk IDSNYK-RHEL7-EAP7JACKSONDATABIND-21400359
  • published21 Oct 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

CVE-2026-101292  (opens in a new tab)
CWE-470  (opens in a new tab)

How to fix?

Upgrade RHEL:7 eap7-jackson-databind to version 0:2.18.8-1.redhat_00003.1.el7eap or higher.
This issue was patched in RHSA-2026:53644.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eap7-jackson-databind package and not the eap7-jackson-databind package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Apache ActiveMQ Artemis before 2.34.0 contains an unsafe reflection vulnerability in FederationStreamConnectMessage.getFederationPolicy(). The method calls Class.forName(clazz).getConstructor().newInstance() where clazz is read directly from the CORE protocol wire buffer without type validation. An authenticated federation peer can send a FEDERATION_DOWNSTREAM_CONNECT packet with a crafted class name, causing the broker to load and instantiate arbitrary classes visible to the Artemis module classloader. Static initializers (<clinit>) and no-argument constructors (<init>()) execute as side effects before the type cast, enabling denial of service via system-property poisoning, out-of-memory conditions via classloading, or broker state manipulation.

CVSS Base Scores

version 3.1