🛡️ CVE-2026-4366
🟡 CVSS 5.8 — Medium ✅ No Known Exploit CWE-918 NVD
5.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CWE CWE-918
Public Exploit ✅ No
Source NVD
Published 2026-03-18
Updated 2026-06-10
Modified 2026-06-09
Fix URL N/A

Affected Packages

Software From version Fixed in
build-of-keycloak
jboss-enterprise-application-platform
jboss-enterprise-application-platform-expansion-pack
single-sign-on

Similar Threats

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