Improper Certificate Validation Affecting eap8-activemq-artemis-selector package, versions <0:2.40.0-8.redhat_00024.1.el9eap


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.35% (27th percentile)

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  • Snyk IDSNYK-RHEL9-EAP8ACTIVEMQARTEMISSELECTOR-20063845
  • published23 Sept 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

CVE-2026-15554  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:9 eap8-activemq-artemis-selector to version 0:2.40.0-8.redhat_00024.1.el9eap or higher.
This issue was patched in RHSA-2026:70229.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eap8-activemq-artemis-selector package and not the eap8-activemq-artemis-selector package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP protocol.

CVSS Base Scores

version 3.1