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CVE-2026-4874
LOW(3.1)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Risk Signal Score8/100 — NIEDRIG
EPSS-Score
0%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
3.1
Technische Schwere
Beschreibung
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.