diff --git a/docs/DEV.md b/docs/DEV.md
index 0f5f777..0e0a1f7 100644
--- a/docs/DEV.md
+++ b/docs/DEV.md
@@ -88,7 +88,7 @@ registerWidgetFetcher('orders', async () => ({ total: await countOrders() }));
 registerWidget({ id: 'orders', Component: OrdersWidget, order: 20 });
 
 registerNavSection({ id: 'commerce', title: 'Commerce', icon: 'ShoppingBag03Icon', order: 30 });
-registerNavItem({ id: 'orders', label: 'Commandes', icon: 'ShoppingBag03Icon', href: '/admin/orders', sectionId: 'commerce' });
+registerNavItem({ id: 'orders', label: 'Commandes', icon: 'ShoppingBag03Icon', href: '/admin/orders', sectionId: 'commerce', permission: 'orders.view' });
 
 registerPage({ slug: 'orders', Component: OrdersPage, title: 'Commandes' });
 ```
diff --git a/src/features/admin/AdminLayout.server.js b/src/features/admin/AdminLayout.server.js
index e544160..b566570 100644
--- a/src/features/admin/AdminLayout.server.js
+++ b/src/features/admin/AdminLayout.server.js
@@ -3,12 +3,14 @@ import { protectAdmin } from './protect.js';
 import { buildNavigationSections, buildBottomNavItems } from './navigation.js';
 import { logoutAction } from '@zen/core/features/auth/actions';
 import { getAppName } from '@zen/core';
+import { getUserPermissions } from '@zen/core/users';
 import './widgets/index.server.js';
 
 export default async function AdminLayout({ children }) {
   const session = await protectAdmin();
   const appName = getAppName();
-  const navigationSections = buildNavigationSections('/');
+  const permissions = await getUserPermissions(session.user.id);
+  const navigationSections = buildNavigationSections('/', permissions);
   const bottomNavItems = buildBottomNavItems('/');
 
   return (
diff --git a/src/features/admin/README.md b/src/features/admin/README.md
index cc83c95..778642c 100644
--- a/src/features/admin/README.md
+++ b/src/features/admin/README.md
@@ -102,12 +102,13 @@ if (!admin) return null;
 
 ---
 
-### `buildNavigationSections(pathname)`
+### `buildNavigationSections(pathname, userPermissions?)`
 
-Construit les sections de navigation pour la sidebar à partir du registre. Marque l'entrée active selon `pathname`.
+Construit les sections de navigation pour la sidebar à partir du registre. Marque l'entrée active selon `pathname`. Les items dont le champ `permission` n'est pas présent dans `userPermissions` sont automatiquement exclus ; si tous les items d'une section sont exclus, la section disparaît également.
 
 ```js
-const sections = buildNavigationSections('/admin/users');
+const permissions = await getUserPermissions(session.user.id);
+const sections = buildNavigationSections('/admin/users', permissions);
 // [{ id, title, icon, items: [{ name, href, icon, current }] }]
 ```
 
@@ -183,6 +184,7 @@ registerNavItem({
   href: '/admin/orders',
   sectionId: 'commerce',
   order: 10,
+  permission: 'orders.view', // optionnel — masqué si l'utilisateur n'a pas cette permission
 });
 ```
 
@@ -195,7 +197,7 @@ registerNavItem({
 | `icon` | `string` | Nom d'icône Hugeicons |
 | `order` | `number` | Ordre d'affichage (défaut : `0`) |
 
-**`registerNavItem({ id, label, icon, href, sectionId?, order?, position? })`**
+**`registerNavItem({ id, label, icon, href, sectionId?, order?, position?, permission? })`**
 
 | Paramètre | Type | Description |
 |-----------|------|-------------|
@@ -206,6 +208,7 @@ registerNavItem({
 | `sectionId` | `string` | Section parente (défaut : `'main'`) |
 | `order` | `number` | Ordre d'affichage (défaut : `0`) |
 | `position` | `string` | `'bottom'` pour épingler en bas de la sidebar |
+| `permission` | `string` | Clé de permission requise pour voir cette entrée (ex. `'orders.view'`). L'entrée est masquée si l'utilisateur ne possède pas cette permission. |
 
 ---
 
@@ -247,7 +250,7 @@ import { registerNavSection, registerNavItem, registerPage } from '@zen/core/fea
 import OrdersPage from './admin/orders/OrdersPage.js';
 
 registerNavSection({ id: 'commerce', title: 'Commerce', icon: 'ShoppingBag03Icon', order: 30 });
-registerNavItem({ id: 'orders', label: 'Commandes', icon: 'ShoppingBag03Icon', href: '/admin/orders', sectionId: 'commerce' });
+registerNavItem({ id: 'orders', label: 'Commandes', icon: 'ShoppingBag03Icon', href: '/admin/orders', sectionId: 'commerce', permission: 'orders.view' });
 registerPage({ slug: 'orders', Component: OrdersPage, title: 'Commandes' });
 ```
 
diff --git a/src/features/admin/navigation.js b/src/features/admin/navigation.js
index 5a97eb3..784b20e 100644
--- a/src/features/admin/navigation.js
+++ b/src/features/admin/navigation.js
@@ -5,14 +5,15 @@ import {
   getNavItems,
 } from './registry.js';
 import { isDevkitEnabled } from '../../shared/lib/appConfig.js';
+import { PERMISSIONS } from '@zen/core/users';
 
 // Sections et items core — enregistrés à l'import de ce module.
 registerNavSection({ id: 'dashboard', title: 'Tableau de bord', icon: 'DashboardSquare03Icon', order: 10 });
 registerNavSection({ id: 'system',    title: 'Utilisateurs',    icon: 'UserMultiple02Icon',     order: 20 });
 
 registerNavItem({ id: 'dashboard', label: 'Tableau de bord', icon: 'DashboardSquare03Icon', href: '/admin/dashboard', sectionId: 'dashboard', order: 10 });
-registerNavItem({ id: 'users',     label: 'Utilisateurs',   icon: 'UserMultiple02Icon',    href: '/admin/users',     sectionId: 'system',    order: 10 });
-registerNavItem({ id: 'roles',     label: 'Rôles',          icon: 'Crown03Icon',           href: '/admin/roles',     sectionId: 'system',    order: 20 });
+registerNavItem({ id: 'users',     label: 'Utilisateurs',   icon: 'UserMultiple02Icon',    href: '/admin/users',     sectionId: 'system',    order: 10, permission: PERMISSIONS.USERS_VIEW   });
+registerNavItem({ id: 'roles',     label: 'Rôles',          icon: 'Crown03Icon',           href: '/admin/roles',     sectionId: 'system',    order: 20, permission: PERMISSIONS.ROLES_VIEW   });
 registerNavItem({ id: 'settings',  label: 'Paramètres',     icon: 'Settings02Icon',        href: '/admin/settings',  position: 'bottom',     order: 10 });
 
 if (isDevkitEnabled()) {
@@ -24,10 +25,17 @@ if (isDevkitEnabled()) {
 /**
  * Build sections for AdminSidebar. Items are sérialisables (pas de composants),
  * icônes en chaînes résolues côté client.
+ * @param {string} pathname
+ * @param {string[]} [userPermissions] - Permissions de l'utilisateur connecté ; les items
+ *   avec un champ `permission` sont masqués si la permission n'est pas présente.
  */
-export function buildNavigationSections(pathname) {
+export function buildNavigationSections(pathname, userPermissions = []) {
   const sections = getNavSections();
-  const items = getNavItems().filter(item => item.position !== 'bottom');
+  const items = getNavItems().filter(item => {
+    if (item.position === 'bottom') return false;
+    if (item.permission && !userPermissions.includes(item.permission)) return false;
+    return true;
+  });
 
   const bySection = new Map();
   for (const item of items) {
diff --git a/src/features/admin/registry.js b/src/features/admin/registry.js
index 035fdb0..5e6e784 100644
--- a/src/features/admin/registry.js
+++ b/src/features/admin/registry.js
@@ -57,8 +57,8 @@ export function registerNavSection({ id, title, icon, order = 0 }) {
   navSections.set(id, { id, title, icon, order });
 }
 
-export function registerNavItem({ id, label, icon, href, order = 0, sectionId = 'main', position }) {
-  navItems.set(id, { id, label, icon, href, order, sectionId, position });
+export function registerNavItem({ id, label, icon, href, order = 0, sectionId = 'main', position, permission }) {
+  navItems.set(id, { id, label, icon, href, order, sectionId, position, permission });
 }
 
 export function getNavSections() {