CVE-2026-88920

critical · 9.8

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.

9.8

CVSS

0.8%

EPSS (exploit prob.)

56th

EPSS percentile

2026-09-30

Published

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

Weaknesses

CWE-287

References

https://lists.apache.org/thread.html/grt43m3bgbzz0mk0cnho3rcybb1j01z9
http://www.openwall.com/lists/oss-security/2026/09/30/10

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-88920