CVE-2026-4366
JBoss EAP vulnerability analysis and mitigation

A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This issue may lead to information disclosure and enable attackers to map internal network infrastructure.


SourceNVD

Related JBoss EAP vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-28369CRITICAL9.1
  • JavaJava
  • io.undertow:undertow-parent
NoYesMar 27, 2026
CVE-2026-28368CRITICAL9.1
  • JavaJava
  • pki-core:10.6::resteasy
NoYesMar 27, 2026
CVE-2026-28367CRITICAL9.1
  • JavaJava
  • fuse
NoYesMar 27, 2026
CVE-2026-3121HIGH7.2
  • JavaJava
  • cpe:2.3:a:redhat:jboss_enterprise_application_platform
NoYesMar 26, 2026
CVE-2026-4874LOW3.1
  • JavaJava
  • org.keycloak:keycloak-services
NoYesMar 26, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management