CVE-2026-88920 — Apache WSS4J: SAML Sender-Vouches Authentication Bypass
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 s…
Published: 2026-09-30 · CVSS: 9.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7