CVE-2026-88920

criticalpriority · track · 0EPSS 0.006 · 48 %ileUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.58% (48th) EPSS

CVSS 9.8 · critical

Is it mine?

3 products

Check your exposure

Who says so?

1 sources

nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287US

affected products (3)

Products and version ranges known to be affected.

apache wss4j< 2.4.4nvdUScpe:2.3:a:apache:wss4j:*:*:*:*:*:*:*:*
apache wss4j3.0.0 → 3.0.6nvdUScpe:2.3:a:apache:wss4j:*:*:*:*:*:*:*:*
apache wss4j4.0.0 → 4.0.2nvdUScpe:2.3:a:apache:wss4j:*:*:*:*:*:*:*:*

sources

Which sources assert this record, and when.

nvd NVD CVE.org MITRE

published 2026-09-30modified 2026-10-02

references (2) nvd

External citations — patches, advisories, analysis.

http://www.openwall.com/lists/oss-security/2026/09/30/10Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/grt43m3bgbzz0mk0cnho3rcybb1j01z9Mailing ListVendor Advisory

scry

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