From 48b79ce739e9314f9b4f52356f875952f47a1a64 Mon Sep 17 00:00:00 2001
From: Salvatore Martire <4652631+salmart-dev@users.noreply.github.com>
Date: Fri, 6 Feb 2026 20:25:20 +0100
Subject: [PATCH] fix: add user id header when redirecting to default app

Signed-off-by: Salvatore Martire <4652631+salmart-dev@users.noreply.github.com>
---
 lib/base.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/base.php b/lib/base.php
index 35b6fb6b98e..cc689c564a4 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -1098,7 +1098,9 @@ class OC {
 		// Redirect to the default app or login only as an entry point
 		if ($requestPath === '') {
 			// Someone is logged in
-			if (Server::get(IUserSession::class)->isLoggedIn()) {
+			$userSession = Server::get(IUserSession::class);
+			if ($userSession->isLoggedIn()) {
+				header('X-User-Id: ' . $userSession->getUser()?->getUID());
 				header('Location: ' . Server::get(IURLGenerator::class)->linkToDefaultPageUrl());
 			} else {
 				// Not handled and not logged in