CVE-2026-85511

Wildfly-elytron-realm-token: parameter injection in eap's elytron oauth2

State: Published
Severity: 4.2 Medium
Published: Sep 18, 2026
Updated: Oct 20, 2026
Reserved: Sep 4, 2026

Description

A flaw was found in EAP's Elytron. An EAP application whose security domain is backed by an Elytron token-realm with oauth2-introspection would allow parameter substitution due to missing URL encoding.

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N	redhat

Weaknesses

CWE-290 Authentication Bypass by Spoofing

Affected Products

Product	Versions
Red Hat JBoss Enterprise Application Platform 8.1.8.GARed Hat	2.6.11.Final-redhat-00001 and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.40.0-8.redhat_00024.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.1.7-1.SP1_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.0.5-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:1.85.0-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:1.2.7-1.redhat_00002.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:801.8.0-1.GA_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:6.6.54-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.1.5-5.redhat_00008.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.0.22-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.18.9-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.0.5-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.0.7-4.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.1.0-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.6.3-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:5.0.31-1.SP2_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.1.0-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.2.0-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:7.4.0-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.0.1-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:5.1.0-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.0.11-2.SP1_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.25.4-1.redhat_00003.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.2.2-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.1.136-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:4.1.136-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:9.37.4-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:1.1.9-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.0.6-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.0.18-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.3.26-2.SP3_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:8.1.8-9.GA_redhat_00006.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.6.11-1.Final_redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:8.1.1-12.GA_redhat_00048.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:2.3.2-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat	0:3.0.6-1.redhat_00001.1.el10eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.40.0-8.redhat_00024.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.1.7-1.SP1_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.0.5-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:1.85.0-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:1.2.7-1.redhat_00002.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:801.8.0-1.GA_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:6.6.54-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.1.5-5.redhat_00008.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.0.22-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.18.9-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.0.5-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.0.7-4.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.1.0-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.6.3-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:5.0.31-1.SP2_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.1.0-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.2.0-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:7.4.0-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.0.1-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:5.1.0-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.0.11-2.SP1_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.25.4-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.2.2-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.1.136-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:4.1.136-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:9.37.4-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:1.1.9-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.0.6-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.0.18-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.3.26-2.SP3_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:8.1.8-9.GA_redhat_00006.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.6.11-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:8.1.1-12.GA_redhat_00048.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:2.3.2-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat	0:3.0.6-1.redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.40.0-8.redhat_00024.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.1.7-1.SP1_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.0.5-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:1.85.0-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:1.2.7-1.redhat_00002.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:801.8.0-1.GA_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:6.6.54-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.1.5-5.redhat_00008.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.0.22-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.18.9-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.0.5-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.0.7-4.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.1.0-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.6.3-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:5.0.31-1.SP2_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.1.0-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.2.0-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:7.4.0-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.0.1-1.Final_redhat_00001.1el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:5.1.0-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.0.11-2.SP1_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.25.4-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.2.2-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.1.136-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:4.1.136-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:9.37.4-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:1.1.9-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.0.6-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.0.18-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.3.26-2.SP3_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:8.1.8-9.GA_redhat_00006.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.6.11-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:8.1.1-12.GA_redhat_00048.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:2.3.2-1.redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat	0:3.0.6-1.redhat_00001.1.el9eap and laterNot affected
Red Hat Data Grid 8Red Hat
Red Hat Fuse 7Red Hat
Red Hat JBoss Enterprise Application Platform 7Red Hat
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
Red Hat Single Sign-On 7Red Hat

References

RHSA-2026:70228vendor-advisory
RHSA-2026:70229vendor-advisory
RHSA-2026:70230vendor-advisory
RHSA-2026:70277vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-85511vdb-entry
RHBZ#2483140issue-tracking

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