Server-side Request Forgery (SSRF) Affecting org.keycloak:keycloak-services package, versions [0,]


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (7th percentile)

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  • Snyk IDSNYK-JAVA-ORGKEYCLOAK-15809327
  • published29 Mar 2026
  • disclosed26 Mar 2026
  • creditUnknown

Introduced: 26 Mar 2026

NewCVE-2026-4874  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

There is no fixed version for org.keycloak:keycloak-services.

Overview

org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services.

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the client_session_host parameter during refresh token requests when the client is configured to use the backchannel.logout.url with the application.session.host placeholder. An attacker can cause the server to make HTTP requests to arbitrary internal or external endpoints by manipulating this parameter, potentially leading to information disclosure by probing internal networks or APIs.

CVSS Base Scores

version 4.0
version 3.1