Missing Authentication for Critical Function Affecting eap8-netty-transport-native-epoll package, versions <0:4.1.136-1.Final_redhat_00001.1.el8eap


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.8% (55th percentile)

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  • Snyk IDSNYK-RHEL8-EAP8NETTYTRANSPORTNATIVEEPOLL-20115458
  • published24 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-49363  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade RHEL:8 eap8-netty-transport-native-epoll to version 0:4.1.136-1.Final_redhat_00001.1.el8eap or higher.
This issue was patched in RHSA-2026:70228.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eap8-netty-transport-native-epoll package and not the eap8-netty-transport-native-epoll package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication.

This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0.

Users are recommended to upgrade to version 2.57.0, which fixes the issue.

CVSS Base Scores

version 3.1