PT-2026-70088 · Wildfly · Undertow

CVE-2026-15554

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Published

2026-08-11

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Updated

2026-08-24

CVSS v3.1

7.4

High

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Undertow (affected versions not specified)
Description The Undertow AJP listener accepts forged ssl cert and is ssl AJP attributes without requiring shared-secret authentication. This allows 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.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

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Weakness Enumeration

Related Identifiers

CVE-2026-15554
RHSA-2026:53644

Affected Products

Undertow