From 3c9bdbd63e0f335e2aa17f640c3afdfa8d541a9a Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Tue, 03 Nov 2026 20:58:49 +0000
Subject: [PATCH] Verify target service when issuing proxy tickets
---
src/main/java/org/keycloak/protocol/cas/endpoints/AbstractValidateEndpoint.java | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/src/main/java/org/keycloak/protocol/cas/endpoints/AbstractValidateEndpoint.java b/src/main/java/org/keycloak/protocol/cas/endpoints/AbstractValidateEndpoint.java
index 33f5ac0..afc9c2c 100644
--- a/src/main/java/org/keycloak/protocol/cas/endpoints/AbstractValidateEndpoint.java
+++ b/src/main/java/org/keycloak/protocol/cas/endpoints/AbstractValidateEndpoint.java
@@ -70,10 +70,7 @@
event.detail(Details.REDIRECT_URI, service);
- client = realm.getClientsStream()
- .filter(c -> CASLoginProtocol.LOGIN_PROTOCOL.equals(c.getProtocol()))
- .filter(c -> RedirectUtils.verifyRedirectUri(session, service, c) != null)
- .findFirst().orElse(null);
+ client = findClient(service);
if (client == null) {
event.error(Errors.CLIENT_NOT_FOUND);
throw new CASValidationException(CASErrorCode.INVALID_SERVICE, "Client not found", Response.Status.BAD_REQUEST);
@@ -91,6 +88,13 @@
session.getContext().setClient(client);
}
+ protected ClientModel findClient(String service) {
+ return realm.getClientsStream()
+ .filter(c -> CASLoginProtocol.LOGIN_PROTOCOL.equals(c.getProtocol()))
+ .filter(c -> RedirectUtils.verifyRedirectUri(session, service, c) != null)
+ .findFirst().orElse(null);
+ }
+
protected void checkTicket(String ticket, String prefix, boolean requireReauth) {
if (ticket == null) {
event.error(Errors.INVALID_CODE);
--
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