CVE-2026-50627

criticalpriority · track · 38EPSS 0.045 · 91 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.52% (91st) EPSS

CVSS 9.1 · critical

Is it mine?

27 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

cvss

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

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.3 · impact 6

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondaryexploitability 2.3 · impact 6

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondaryexploitability 2.8 · impact 5.2

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · OSV

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-289USCWE-289USCWE-303USCWE-303US

affected products (27)

Products and version ranges known to be affected.

IBM Business Automation Workflowall versionscert_bundDEcpe:/a:ibm:business_automation_workflow:-
IBM MQ Operatorall versionscert_bundDEcpe:/a:ibm:mq:operator
IBM QRadar SIEMall versionscert_bundDEcpe:/a:ibm:qradar_siem:-
IBM Rational ClearQuestall versionscert_bundDEcpe:/a:ibm:rational_clearquest:-
IBM SPSS Analytic Serverall versionscert_bundDEcpe:/a:ibm:spss:analytic_server
IBM Security Verify Accessall versionscert_bundDEcpe:/a:ibm:security_verify_access:-
IBM Tivoli Network Managerall versionscert_bundDEcpe:/a:ibm:tivoli_network_manager:ip_edition
IBM WebSphere Application Serverall versionscert_bundDEcpe:/a:ibm:websphere_application_server:-
IBM WebSphere Application Server Libertyall versionscert_bundDEcpe:/a:ibm:websphere_application_server_liberty:-
IBM WebSphere Application Server Liberty 17.0.0.3-26.0.0.9all versionscert_bundDEcpe:/a:ibm:websphere_application_server_liberty:17.0.0.3_-_26.0.0.9
IBM WebSphere Application Server libertyall versionscert_bundDEcpe:/a:ibm:websphere_application_server:liberty
IBM WebSphere Service Registry and Repositoryall versionscert_bundDEcpe:/a:ibm:websphere_service_registry_and_repository:-
IBM WebSphere Service Registry and Repository 8.5all versionscert_bundDEcpe:/a:ibm:websphere_service_registry_and_repository:8.5
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Apache Apache CXF <4.1.7< 4.1.7cert_bundDE
Apache Apache CXF <4.2.2< 4.2.2cert_bundDE
Apache CXF< 4.1.7cert_bundDE
Apache CXF< 4.2.2cert_bundDE
RealObjects PDFreactor< 12.6.1cert_bundDE
RealObjects RealObjects PDFreactor <12.6.1< 12.6.1cert_bundDE

showing 20 of 27

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1895Apache CXF: Mehrere SchwachstellenDeutsch2026-06-11csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Apache CXF ausnutzen, um Sicherheitsvorkehrungen zu umgehen, XML-External-Entity-Angriffe durchzuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
GHSA-9mrv-8pvf-hf4mApache CXF OAuth2 Missing JWT Audience and Issuer Validation in Access Token Validator2026-06-12ghsa · osvUS
The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv NVD CVE.org MITRE

published 2026-06-12modified 2026-10-26

references (10)

External citations — patches, advisories, analysis.

scry

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