CVE-2026-4366
Published: Mar 18, 2026
Modified: Mar 18, 2026
CVSS v3.1
5.8
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat Build of Keycloak | All versions |
Red Hat | Red Hat Build of Keycloak | All versions |
Red Hat | Red Hat Build of Keycloak | All versions |
Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All versions |
Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | All versions |
Red Hat | Red Hat Single Sign-On 7 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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