diff --git a/api-tests/core/content-manager/api/relations-permissions.test.api.js b/api-tests/core/content-manager/api/relations-permissions.test.api.js
new file mode 100644
index 0000000000..6ebab159b6
--- /dev/null
+++ b/api-tests/core/content-manager/api/relations-permissions.test.api.js
@@ -0,0 +1,199 @@
+'use strict';
+
+const { createTestBuilder } = require('api-tests/builder');
+const { createStrapiInstance } = require('api-tests/strapi');
+const { createAuthRequest } = require('api-tests/request');
+const { createUtils } = require('api-tests/utils');
+
+let strapi;
+let utils;
+// Requests
+let rq;
+let rqRestricted;
+let rqPermissive;
+// Entries
+let product;
+let shop;
+let user;
+
+const populateShop = ['products'];
+
+const productModel = {
+  attributes: {
+    name: {
+      type: 'string',
+    },
+  },
+  displayName: 'Product',
+  singularName: 'product',
+  pluralName: 'products',
+  description: '',
+  collectionName: '',
+};
+
+const shopModel = {
+  attributes: {
+    name: {
+      type: 'string',
+    },
+    products: {
+      type: 'relation',
+      relation: 'manyToMany',
+      target: 'api::product.product',
+      targetAttribute: 'shops',
+    },
+  },
+  displayName: 'Shop',
+  singularName: 'shop',
+  pluralName: 'shops',
+};
+
+const createEntry = async (model, data, populate) => {
+  const { body } = await rq({
+    method: 'POST',
+    url: `/content-manager/collection-types/${model}`,
+    body: data,
+    qs: { populate },
+  });
+  return body;
+};
+
+const getRelations = async (rq, uid, field, id) => {
+  const res = await rq({
+    method: 'GET',
+    url: `/content-manager/relations/${uid}/${id}/${field}`,
+  });
+
+  return res;
+};
+
+const createUserAndReq = async (userName, permissions) => {
+  const role = await utils.createRole({
+    name: `role-${userName}`,
+    description: `Role with restricted permissions for ${userName}`,
+  });
+
+  const rolePermissions = await utils.assignPermissionsToRole(role.id, permissions);
+  Object.assign(role, { permissions: rolePermissions });
+
+  const user = await utils.createUser({
+    firstname: userName,
+    lastname: 'User',
+    email: `${userName}.user@strapi.io`,
+    roles: [role.id],
+  });
+
+  const rq = await createAuthRequest({ strapi, userInfo: user });
+
+  return rq;
+};
+
+// Create role?
+//  - Without permissions to read users
+//  - With permissions to read users
+//  - With permissions to read a specific model mainField
+//  - Without permissions to read a specific model mainField
+describe('Relations', () => {
+  const builder = createTestBuilder();
+
+  const createFixtures = async () => {
+    rqRestricted = await createUserAndReq('restricted', [
+      // Can read shops but not products
+      {
+        action: 'plugin::content-manager.explorer.read',
+        subject: 'api::shop.shop',
+      },
+      {
+        action: 'plugin::content-manager.explorer.read',
+        subject: 'plugin::users-permissions.user',
+      },
+    ]);
+    rqPermissive = await createUserAndReq('permissive', [
+      // Can read shops and products
+      {
+        action: 'plugin::content-manager.explorer.read',
+        subject: 'api::shop.shop',
+      },
+      {
+        action: 'plugin::content-manager.explorer.read',
+        subject: 'api::product.product',
+      },
+      {
+        action: 'plugin::content-manager.explorer.read',
+        subject: 'plugin::users-permissions.user',
+      },
+    ]);
+  };
+
+  beforeAll(async () => {
+    await builder.addContentTypes([productModel, shopModel]).build();
+
+    strapi = await createStrapiInstance();
+    utils = createUtils(strapi);
+
+    rq = await createAuthRequest({ strapi });
+    await createFixtures();
+
+    product = await createEntry('api::product.product', { name: 'Skate' });
+    shop = await createEntry(
+      'api::shop.shop',
+      { name: 'Shop', products: [product.id] },
+      populateShop
+    );
+    user = await createEntry('plugin::users-permissions.user', {
+      username: 'Alice',
+      email: 'test@strapi.io',
+      password: '1234-never-gonna-hack-you-up',
+      role: 1,
+    });
+  });
+
+  afterAll(async () => {
+    await strapi.destroy();
+    await builder.cleanup();
+  });
+
+  test('Permissive user can read shop products mainField', async () => {
+    const { body: products } = await getRelations(
+      rqPermissive,
+      'api::shop.shop',
+      'products',
+      shop.id
+    );
+
+    // Main field should be in here
+    expect(products.results).toHaveLength(1);
+    // Main field should be visible
+    expect(products.results[0].name).toBe(product.name);
+  });
+
+  test('Restricted user cannot read shop products mainField', async () => {
+    const { body: products } = await getRelations(
+      rqRestricted,
+      'api::shop.shop',
+      'products',
+      shop.id
+    );
+
+    expect(products.results).toHaveLength(1);
+    // Main field should not be visible
+    expect(products.results[0].name).toBeUndefined();
+    expect(products.results[0].id).toBe(product.id);
+  });
+
+  /**
+   * Test hardcoded condition to populate the user role names
+   * if the user has the permission to read users
+   */
+  test('Restricted user can read user role names', async () => {
+    const { body: role } = await getRelations(
+      rqRestricted,
+      'plugin::users-permissions.user',
+      'role',
+      user.id
+    );
+
+    // Main field should be visible
+    expect(role.data?.name).toBe('Authenticated');
+  });
+});