CVE-2026-15554highCWE-295

CVE-2026-15554: high-severity vulnerability in Red Hat JBoss Enterprise Application Platform 7.

Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.4epss 0.5%
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4.25Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat · Red Hat JBoss Enterprise Application Platform 8.1.8.GARed Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat · Red Hat JBoss Enterprise Application Platform Expansion Pack
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