CVEvulnerability
CVE-2026-4366
5.8 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-03-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- Weaknesses
- CWE-918
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.
Affected configurations
• redhat build of keycloak
• redhat jboss enterprise application platform 8.0.0
• redhat jboss enterprise application platform expansion pack
• redhat single sign-on 7.0
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://access.redhat.com/errata/RHSA-2026:19596 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:19597 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-4366 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2448543 Issue Tracking, Vendor Advisory