Disclosure summary
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-reported weakness categories
CWE-287
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-88920
Open original source · Updated Oct 02, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| apache | wss4j | * {"versionStartIncluding":"4.0.0","versionEndExcluding":"4.0.2"} |
Original records & references
- NIST NVD record
- CVE Program record
- lists.apache.org — Mailing List, Vendor Advisory
PUBLISHED 2026-09-30T08:17:14-04:00
MODIFIED 2026-10-02T16:17:49-04:00
INGESTED 2026-10-06T11:44:58-04:00