5.8

CVE-2026-4366

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.
Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
Produkt Red Hat Build of Keycloak
Default Statusaffected
HerstellerRed Hat
Produkt Red Hat JBoss Enterprise Application Platform 8
Default Statusaffected
HerstellerRed Hat
Produkt Red Hat JBoss Enterprise Application Platform Expansion Pack
Default Statusaffected
HerstellerRed Hat
Produkt Red Hat Single Sign-On 7
Default Statusaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.076
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 5.8 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CWE-918 Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.