From a81f4a3da2531884e8d9f5c98b7cacc8eec1febe Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Tue, 03 Nov 2026 20:58:36 +0000
Subject: [PATCH] Require and verify service parameter in proxyValidate endpoint
---
src/main/java/org/keycloak/protocol/cas/endpoints/ProxyValidateEndpoint.java | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/main/java/org/keycloak/protocol/cas/endpoints/ProxyValidateEndpoint.java b/src/main/java/org/keycloak/protocol/cas/endpoints/ProxyValidateEndpoint.java
index 35468f8..ff1930e 100644
--- a/src/main/java/org/keycloak/protocol/cas/endpoints/ProxyValidateEndpoint.java
+++ b/src/main/java/org/keycloak/protocol/cas/endpoints/ProxyValidateEndpoint.java
@@ -27,6 +27,7 @@
@NoCache
public Response build() {
MultivaluedMap<String, String> params = session.getContext().getUri().getQueryParameters();
+ String service = params.getFirst(CASLoginProtocol.SERVICE_PARAM);
String ticket = params.getFirst(CASLoginProtocol.TICKET_PARAM);
String pgtUrl = params.getFirst(CASLoginProtocol.PGTURL_PARAM);
boolean renew = params.containsKey(CASLoginProtocol.RENEW_PARAM);
@@ -45,6 +46,7 @@
checkSsl();
checkRealm();
+ checkClient(service);
checkTicket(ticket, prefix, renew);
if (pgtUrl != null) createProxyGrant(pgtUrl);
event.success();
--
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