CVEvulnerability

CVE-2026-4874

3.1 LOW Published 2026-03-26 Modified 2026-06-26 Official page ↗
Status
Modified
Published
2026-03-26
Last modified
2026-06-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.1 LOW — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1 ([email protected])
3.1 LOW — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-918

Description

A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery (SSRF) by manipulating the `client_session_host` parameter during refresh token requests. This occurs when a Keycloak client is configured to use the `backchannel.logout.url` with the `application.session.host` placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s network context, potentially probing internal networks or internal APIs, leading to information disclosure.

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