CVE-2026-88920
CRITICAL NVDCVSS Score
9.8
Severity
CRITICAL
Source
NVD
Published
Sep 30, 2026
Description
An authentication bypass in the DOM security processor in Apache WSS4J allows unauthenticated remote attackers to forge authenticated SOAP messages via a crafted unsigned SAML sender-vouches assertion containing an attacker-controlled key. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.