4

CVE-2026-105301

Keycloak-services: keycloak-services: blind ssrf via x.509 authenticator fetching attacker-controlled crl-dp/ocsp urls

A flaw was found in the X.509 client-certificate authenticator of Keycloak, a solution for identity and access management. The issue occurs when the server is configured to check certificate revocation using CRL Distribution Points or OCSP. An attacker can provide a specially crafted certificate that points to a malicious server, causing Keycloak to make unauthorized outbound requests to internal or external endpoints before the certificate is fully validated. This can lead to a blind server-side request forgery (SSRF) attack.
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
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Produkt Red Hat Single Sign-On 7
Default Statusunaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.016
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 4 2.2 1.4
CVSS:3.1/AV:N/AC:H/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.

https://access.redhat.com/security/cve/CVE-2026-105301
https://bugzilla.redhat.com/show_bug.cgi?id=2545797