Bug 2483140 (CVE-2026-85511) - CVE-2026-85511 wildfly-elytron-realm-token: parameter injection in EAP's elytron oauth2
Summary: CVE-2026-85511 wildfly-elytron-realm-token: parameter injection in EAP's elyt...
Keywords:
Status: NEW
Alias: CVE-2026-85511
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-29 01:38 UTC by OSIDB Bzimport
Modified: 2026-09-22 15:36 UTC (History)
22 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:70228 0 None None None 2026-09-22 12:56:30 UTC
Red Hat Product Errata RHSA-2026:70229 0 None None None 2026-09-22 13:01:03 UTC
Red Hat Product Errata RHSA-2026:70230 0 None None None 2026-09-22 12:58:58 UTC
Red Hat Product Errata RHSA-2026:70277 0 None None None 2026-09-22 15:36:05 UTC

Description OSIDB Bzimport 2026-05-29 01:38:09 UTC 
original reporting: https://docs.google.com/document/d/1Rf4NtLudECimDNy8F9clUblm6Avx8_yF/edit

Auth Bypass — Elytron OAuth2 introspection bearer param-injection enables cross-audience token swap (JBoss EAP)

Authentication bypass on any EAP application whose security domain is backed by an Elytron token-realm with <oauth2-introspection>.
findings/jboss-eap_111.md
Comment 1 Jon Orris 2026-09-22 12:56:28 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

Via RHSA-2026:70228 https://access.redhat.com/errata/RHSA-2026:70228
Comment 2 Jon Orris 2026-09-22 12:58:56 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10

Via RHSA-2026:70230 https://access.redhat.com/errata/RHSA-2026:70230
Comment 3 Jon Orris 2026-09-22 13:01:01 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

Via RHSA-2026:70229 https://access.redhat.com/errata/RHSA-2026:70229
Comment 4 Jon Orris 2026-09-22 15:36:03 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1

Via RHSA-2026:70277 https://access.redhat.com/errata/RHSA-2026:70277
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