Server-Side Request Forgery (SSRF) Affecting keycloak-services package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.23% (14th percentile)

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  • Snyk IDSNYK-RHEL8-KEYCLOAKSERVICES-15699798
  • published20 Mar 2026
  • disclosed18 Mar 2026

Introduced: 18 Mar 2026

CVE-2026-4366  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 keycloak-services.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak-services package and not the keycloak-services package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1