CVE-2026-15554

HighCVSS 7.4/10Last modified Nov 12, 2026

Description

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.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
Red HatRed Hat JBoss Enterprise Application Platform 7.4.25—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—
Red HatRed Hat JBoss Enterprise Application Platform 8.1.8.GA—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 10—

References

Timeline

Published
Aug 11, 2026
Last modified
Nov 12, 2026
NVD status
Awaiting Analysis

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CVE-2026-15554: High severity, CVSS 7.4 | Vulnix