9.8

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 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Apache ≫ Wss4j Version < 2.4.4
Apache ≫ Wss4j Version >= 3.0.0 < 3.0.6
Apache ≫ Wss4j Version >= 4.0.0 < 4.0.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.53% 0.427
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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