diff --git a/thanasoft-front/src/examples/Sidenav/SidenavList.vue b/thanasoft-front/src/examples/Sidenav/SidenavList.vue
index 98eb922..ef5182d 100644
--- a/thanasoft-front/src/examples/Sidenav/SidenavList.vue
+++ b/thanasoft-front/src/examples/Sidenav/SidenavList.vue
@@ -65,6 +65,8 @@
 <script>
 import SidenavItem from "./SidenavItem.vue";
 import SidenavCollapse from "./SidenavCollapse.vue";
+import pinia from "@/plugins/pinia";
+import { useAuthStore } from "@/stores/auth";
 
 import Shop from "../../components/Icon/Shop.vue";
 import Office from "../../components/Icon/Office.vue";
@@ -87,10 +89,13 @@ export default {
   },
   computed: {
     ...mapState(["isRTL"]),
+    authStore() {
+      return useAuthStore(pinia);
+    },
 
     // Navigation data structure
     navigationItems() {
-      return [
+      const items = [
         {
           id: "dashboard",
           type: "collapse",
@@ -410,37 +415,118 @@ export default {
           icon: "Office",
           collapseRef: "parametrageMenu",
           routeKey: "parametrage",
+          requiredAny: [
+            { role: "administrator" },
+            { permission: "config.view" },
+            { permission: "config.view_roles" },
+            { permission: "crud.user" },
+          ],
           children: [
+            {
+              id: "utilisateurs",
+              route: { name: "Gestion utilisateurs" },
+              miniIcon: "U",
+              text: "Gestion utilisateurs",
+              requiredPermission: "crud.user",
+              allowAdministrator: true,
+            },
+            {
+              id: "utilisateurs-create",
+              route: { name: "Créer utilisateur" },
+              miniIcon: "A",
+              text: "Créer utilisateur",
+              requiredPermission: "crud.user",
+              allowAdministrator: true,
+            },
             {
               id: "droits",
               route: { name: "Gestion droits" },
               miniIcon: "D",
               text: "Gestion des droits",
+              requiredPermission: "config.view_roles",
+              allowAdministrator: true,
             },
             {
               id: "emails",
               route: { name: "Gestion emails" },
               miniIcon: "E",
               text: "Gestion des emails",
+              requiredPermission: "config.view",
+              allowAdministrator: true,
             },
             {
               id: "modeles",
               route: { name: "Gestion modeles" },
               miniIcon: "M",
               text: "Gestion des modèles",
+              requiredPermission: "config.view",
+              allowAdministrator: true,
             },
             {
               id: "categories-produits",
               route: { name: "Product Categories" },
               miniIcon: "C",
               text: "Catégories Produits",
+              requiredPermission: "config.view",
+              allowAdministrator: true,
             },
           ],
         },
       ];
+
+      return this.filterNavigationItems(items);
     },
   },
   methods: {
+    canAccessItem(item) {
+      if (item.allowAdministrator && this.authStore.hasRole("administrator")) {
+        return true;
+      }
+
+      if (item.requiredPermission) {
+        return this.authStore.hasPermission(item.requiredPermission);
+      }
+
+      if (Array.isArray(item.requiredAny) && item.requiredAny.length > 0) {
+        return item.requiredAny.some((access) => {
+          if (access.role) {
+            return this.authStore.hasRole(access.role);
+          }
+
+          if (access.permission) {
+            return this.authStore.hasPermission(access.permission);
+          }
+
+          return false;
+        });
+      }
+
+      return true;
+    },
+
+    filterNavigationItems(items) {
+      return items
+        .map((item) => {
+          if (item.type !== "collapse") {
+            return item;
+          }
+
+          const children = (item.children || []).filter((child) =>
+            this.canAccessItem(child)
+          );
+
+          if (!children.length || !this.canAccessItem(item)) {
+            return null;
+          }
+
+          return {
+            ...item,
+            children,
+          };
+        })
+        .filter(Boolean);
+    },
+
     getRoute() {
       const routeArr = this.$route.path.split("/");
       return routeArr[1];
diff --git a/thanasoft-front/src/router/index.js b/thanasoft-front/src/router/index.js
index 2ff449b..9730d63 100644
--- a/thanasoft-front/src/router/index.js
+++ b/thanasoft-front/src/router/index.js
@@ -48,6 +48,7 @@ import VerificationIllustration from "../views/auth/verification/Illustration.vu
 import SignupBasic from "../views/auth/signup/Basic.vue";
 import SignupCover from "../views/auth/signup/Cover.vue";
 import SignupIllustration from "../views/auth/signup/Illustration.vue";
+import Error401 from "../views/auth/error/Error401.vue";
 import Error404 from "../views/auth/error/Error404.vue";
 import Error500 from "../views/auth/error/Error500.vue";
 import lockBasic from "../views/auth/lock/Basic.vue";
@@ -353,6 +354,12 @@ const routes = [
     component: SignupIllustration,
     meta: { guestLayout: true },
   },
+  {
+    path: "/authentication/error/error401",
+    name: "Error Error401",
+    component: Error401,
+    meta: { public: true, guestLayout: true },
+  },
   {
     path: "/authentication/error/error404",
     name: "Error Error404",
@@ -782,25 +789,77 @@ const routes = [
     component: () => import("@/views/pages/Defunts/DefuntDetails.vue"),
   },
   // Paramétrage
+  {
+    path: "/parametrage",
+    name: "Paramétrage",
+    redirect: "/parametrage/droits",
+    meta: {
+      requiredPermission: "config.view",
+      allowAdministrator: true,
+    },
+  },
   {
     path: "/parametrage/droits",
     name: "Gestion droits",
     component: () => import("@/views/pages/Parametrage/Droits.vue"),
+    meta: {
+      requiredPermission: "config.view_roles",
+      allowAdministrator: true,
+    },
+  },
+  {
+    path: "/parametrage/utilisateurs",
+    name: "Gestion utilisateurs",
+    component: () => import("@/views/pages/Parametrage/Users.vue"),
+    meta: {
+      requiredPermission: "crud.user",
+      allowAdministrator: true,
+    },
+  },
+  {
+    path: "/parametrage/utilisateurs/creation",
+    name: "Créer utilisateur",
+    component: () => import("@/views/pages/Parametrage/UserCreate.vue"),
+    meta: {
+      requiredPermission: "crud.user",
+      allowAdministrator: true,
+    },
+  },
+  {
+    path: "/parametrage/utilisateurs/:id",
+    name: "Détail utilisateur",
+    component: () => import("@/views/pages/Parametrage/UserDetails.vue"),
+    meta: {
+      requiredPermission: "crud.user",
+      allowAdministrator: true,
+    },
   },
   {
     path: "/parametrage/emails",
     name: "Gestion emails",
     component: () => import("@/views/pages/Parametrage/Emails.vue"),
+    meta: {
+      requiredPermission: "config.view",
+      allowAdministrator: true,
+    },
   },
   {
     path: "/parametrage/modeles",
     name: "Gestion modeles",
     component: () => import("@/views/pages/Parametrage/Modeles.vue"),
+    meta: {
+      requiredPermission: "config.view",
+      allowAdministrator: true,
+    },
   },
   {
     path: "/parametrage/categories-produits",
     name: "Product Categories",
     component: () => import("@/views/pages/Parametrage/ProductCategories.vue"),
+    meta: {
+      requiredPermission: "config.view",
+      allowAdministrator: true,
+    },
   },
 ];
 
@@ -816,6 +875,32 @@ import pinia from "@/plugins/pinia";
 
 const DASHBOARD = "/dashboards/dashboard-default";
 const LOGIN = "/login"; // canonical login path without redirect query
+const UNAUTHORIZED = "/authentication/error/error401";
+
+const canAccessRoute = (auth, to) => {
+  const accessMeta = to.matched.reduce(
+    (carry, record) => ({
+      requiredPermission:
+        record.meta?.requiredPermission ?? carry.requiredPermission,
+      allowAdministrator:
+        record.meta?.allowAdministrator ?? carry.allowAdministrator,
+    }),
+    {
+      requiredPermission: null,
+      allowAdministrator: false,
+    }
+  );
+
+  if (accessMeta.allowAdministrator && auth.hasRole("administrator")) {
+    return true;
+  }
+
+  if (accessMeta.requiredPermission) {
+    return auth.hasPermission(accessMeta.requiredPermission);
+  }
+
+  return true;
+};
 
 router.beforeEach(async (to, from, next) => {
   const auth = useAuthStore(pinia);
@@ -848,6 +933,26 @@ router.beforeEach(async (to, from, next) => {
   }
 
   if (auth.isAuthenticated) {
+    if (to.path === "/parametrage") {
+      if (auth.hasRole("administrator") || auth.hasPermission("crud.user")) {
+        return next({ name: "Gestion utilisateurs" });
+      }
+
+      if (auth.hasPermission("config.view_roles")) {
+        return next({ name: "Gestion droits" });
+      }
+
+      if (auth.hasPermission("config.view")) {
+        return next({ name: "Gestion emails" });
+      }
+
+      return next({ path: UNAUTHORIZED, replace: true });
+    }
+
+    if (!canAccessRoute(auth, to)) {
+      return next({ path: UNAUTHORIZED, replace: true });
+    }
+
     // Prevent authenticated users from visiting guest-only routes (like sign-in)
     if (isGuestOnly || isLoginRoute) return next(DASHBOARD);
     return next();
diff --git a/thanasoft-front/src/services/auth.ts b/thanasoft-front/src/services/auth.ts
index f0ea27a..7a607eb 100644
--- a/thanasoft-front/src/services/auth.ts
+++ b/thanasoft-front/src/services/auth.ts
@@ -19,6 +19,16 @@ export interface User {
   email_verified_at: string | null;
   created_at: string;
   updated_at: string;
+  roles?: Array<{
+    id: number;
+    name: string;
+    guard_name?: string;
+  }>;
+  permissions?: Array<{
+    id: number;
+    name: string;
+    guard_name?: string;
+  }>;
 }
 
 export interface LoginResponse {
diff --git a/thanasoft-front/src/services/user.ts b/thanasoft-front/src/services/user.ts
index 214e8d0..070d8ce 100644
--- a/thanasoft-front/src/services/user.ts
+++ b/thanasoft-front/src/services/user.ts
@@ -39,6 +39,7 @@ export interface UpdateUserPayload {
   name: string;
   email: string;
   password?: string | null;
+  clear_password?: boolean;
   roles?: string[];
   permissions?: string[];
 }
diff --git a/thanasoft-front/src/stores/auth.ts b/thanasoft-front/src/stores/auth.ts
index 0988dad..71f7da8 100644
--- a/thanasoft-front/src/stores/auth.ts
+++ b/thanasoft-front/src/stores/auth.ts
@@ -15,8 +15,21 @@ export const useAuthStore = defineStore("auth", {
   }),
   getters: {
     isAuthenticated: (state) => !!state.user && !!state.token,
+    roleNames: (state) =>
+      (state.user?.roles || []).map((role) => role.name.toLowerCase()),
+    permissionNames: (state) =>
+      (state.user?.permissions || []).map((permission) => permission.name),
   },
   actions: {
+    hasRole(role: string) {
+      return this.roleNames.includes(role.toLowerCase());
+    },
+    hasPermission(permission: string) {
+      return this.permissionNames.includes(permission);
+    },
+    hasAnyPermission(permissions: string[] = []) {
+      return permissions.some((permission) => this.hasPermission(permission));
+    },
     async fetchMe() {
       try {
         const userData = await AuthService.me();
diff --git a/thanasoft-front/src/stores/userStore.ts b/thanasoft-front/src/stores/userStore.ts
index a6085d5..74ae36d 100644
--- a/thanasoft-front/src/stores/userStore.ts
+++ b/thanasoft-front/src/stores/userStore.ts
@@ -76,7 +76,10 @@ export const useUserStore = defineStore("user", () => {
 
     try {
       const user = await UserService.createUser(payload);
-      users.value = [user, ...users.value.filter((item) => item.id !== user.id)];
+      users.value = [
+        user,
+        ...users.value.filter((item) => item.id !== user.id),
+      ];
       currentUser.value = user;
       searchedUser.value = user;
       return user;
@@ -95,7 +98,9 @@ export const useUserStore = defineStore("user", () => {
 
     try {
       const user = await UserService.updateUser(payload);
-      users.value = users.value.map((item) => (item.id === user.id ? user : item));
+      users.value = users.value.map((item) =>
+        item.id === user.id ? user : item
+      );
       currentUser.value = user;
       searchedUser.value = user;
       return user;
diff --git a/thanasoft-front/src/views/auth/error/Error401.vue b/thanasoft-front/src/views/auth/error/Error401.vue
new file mode 100644
index 0000000..cc7f4d6
--- /dev/null
+++ b/thanasoft-front/src/views/auth/error/Error401.vue
@@ -0,0 +1,78 @@
+<template>
+  <navbar btn-background="bg-gradient-dark" :dark-mode="true" />
+  <main class="main-content mt-0 ps">
+    <section class="my-10">
+      <div class="container">
+        <div class="row align-items-center">
+          <div class="col-lg-6 my-auto">
+            <h1 class="display-1 text-bolder text-gradient text-warning">
+              401
+            </h1>
+            <h2>Accès non autorisé</h2>
+            <p class="lead">
+              Vous n'avez pas les droits nécessaires pour accéder à cette page.
+            </p>
+            <router-link to="/dashboards/dashboard-default">
+              <soft-button color="dark" variant="gradient" class="mt-4">
+                Retour au dashboard
+              </soft-button>
+            </router-link>
+          </div>
+          <div class="col-lg-6 my-auto position-relative text-center">
+            <div class="error-401-visual mx-auto">
+              <span>401</span>
+            </div>
+          </div>
+        </div>
+      </div>
+    </section>
+  </main>
+  <app-footer />
+</template>
+
+<script>
+import Navbar from "@/examples/PageLayout/Navbar.vue";
+import AppFooter from "@/examples/PageLayout/Footer.vue";
+import SoftButton from "@/components/SoftButton.vue";
+import { mapMutations } from "vuex";
+
+export default {
+  name: "Error401",
+  components: {
+    Navbar,
+    AppFooter,
+    SoftButton,
+  },
+  created() {
+    this.toggleEveryDisplay();
+    this.toggleHideConfig();
+  },
+  beforeUnmount() {
+    this.toggleEveryDisplay();
+    this.toggleHideConfig();
+  },
+  methods: {
+    ...mapMutations(["toggleEveryDisplay", "toggleHideConfig"]),
+  },
+};
+</script>
+
+<style scoped>
+.error-401-visual {
+  width: 260px;
+  height: 260px;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: linear-gradient(135deg, #f59e0b, #f97316);
+  box-shadow: 0 1.5rem 3rem rgba(245, 158, 11, 0.25);
+}
+
+.error-401-visual span {
+  color: #fff;
+  font-size: 4.5rem;
+  font-weight: 800;
+  letter-spacing: 0.08em;
+}
+</style>