CVE-2026-15554

Published: Aug 11, 2026Modified: Aug 24, 2026

7.4

Vector

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

Exploitability: 2.2 / Impact: 5.2

Source: secalert@redhat.com (Secondary)

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.

Related CWEs

CWE-295

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (4)

https://access.redhat.com/errata/RHSA-2026:53644

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:53806

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-15554

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2480601

Source: secalert@redhat.com

Timeline

No history available yet.