diff --git a/apps/provisioning_api/lib/Controller/AUserData.php b/apps/provisioning_api/lib/Controller/AUserData.php
index eb881db45e03e..d11caaa166961 100644
--- a/apps/provisioning_api/lib/Controller/AUserData.php
+++ b/apps/provisioning_api/lib/Controller/AUserData.php
@@ -20,9 +20,11 @@
 use OCP\AppFramework\OCS\OCSNotFoundException;
 use OCP\AppFramework\OCSController;
 use OCP\Files\NotFoundException;
+use OCP\Group\ISubAdmin;
 use OCP\IConfig;
 use OCP\IGroupManager;
 use OCP\IRequest;
+use OCP\IUser;
 use OCP\IUserManager;
 use OCP\IUserSession;
 use OCP\L10N\IFactory;
@@ -45,35 +47,18 @@ abstract class AUserData extends OCSController {
 	public const USER_FIELD_MANAGER = 'manager';
 	public const USER_FIELD_NOTIFICATION_EMAIL = 'notify_email';
 
-	/** @var IUserManager */
-	protected $userManager;
-	/** @var IConfig */
-	protected $config;
-	/** @var Manager */
-	protected $groupManager;
-	/** @var IUserSession */
-	protected $userSession;
-	/** @var IAccountManager */
-	protected $accountManager;
-	/** @var IFactory */
-	protected $l10nFactory;
-
-	public function __construct(string $appName,
+	public function __construct(
+		string $appName,
 		IRequest $request,
-		IUserManager $userManager,
-		IConfig $config,
-		IGroupManager $groupManager,
-		IUserSession $userSession,
-		IAccountManager $accountManager,
-		IFactory $l10nFactory) {
+		protected IUserManager $userManager,
+		protected IConfig $config,
+		protected IGroupManager $groupManager,
+		protected IUserSession $userSession,
+		protected IAccountManager $accountManager,
+		protected ISubAdmin $subAdminManager,
+		protected IFactory $l10nFactory,
+	) {
 		parent::__construct($appName, $request);
-
-		$this->userManager = $userManager;
-		$this->config = $config;
-		$this->groupManager = $groupManager;
-		$this->userSession = $userSession;
-		$this->accountManager = $accountManager;
-		$this->l10nFactory = $l10nFactory;
 	}
 
 	/**
@@ -136,8 +121,8 @@ protected function getUserData(string $userId, bool $includeScopes = false): ?ar
 		$data['backend'] = $targetUserObject->getBackendClassName();
 		$data['subadmin'] = $this->getUserSubAdminGroupsData($targetUserObject->getUID());
 		$data[self::USER_FIELD_QUOTA] = $this->fillStorageInfo($targetUserObject->getUID());
-		$managerUids = $targetUserObject->getManagerUids();
-		$data[self::USER_FIELD_MANAGER] = empty($managerUids) ? '' : $managerUids[0];
+		$managers = $this->getManagers($targetUserObject);
+		$data[self::USER_FIELD_MANAGER] = empty($managers) ? '' : $managers[0];
 
 		try {
 			if ($includeScopes) {
@@ -206,6 +191,37 @@ protected function getUserData(string $userId, bool $includeScopes = false): ?ar
 		return $data;
 	}
 
+	/**
+	 * @return string[]
+	 */
+	protected function getManagers(IUser $user): array {
+		$currentLoggedInUser = $this->userSession->getUser();
+		$isAdmin = $this->groupManager->isAdmin($currentLoggedInUser->getUID());
+		$isDelegatedAdmin = $this->groupManager->isDelegatedAdmin($currentLoggedInUser->getUID());
+		$isSubAdmin = $this->subAdminManager->isSubAdmin($currentLoggedInUser);
+
+		$managerUids = $user->getManagerUids();
+		if ($isAdmin || $isDelegatedAdmin) {
+			return $managerUids;
+		}
+
+		if ($isSubAdmin) {
+			$accessibleManagerUids = array_values(array_filter(
+				$managerUids,
+				function (string $managerUid) use ($currentLoggedInUser) {
+					$manager = $this->userManager->get($managerUid);
+					if (!($manager instanceof IUser)) {
+						return false;
+					}
+					return $this->subAdminManager->isUserAccessible($currentLoggedInUser, $manager);
+				},
+			));
+			return $accessibleManagerUids;
+		}
+
+		return [];
+	}
+
 	/**
 	 * Get the groups a user is a subadmin of
 	 *
diff --git a/apps/provisioning_api/lib/Controller/GroupsController.php b/apps/provisioning_api/lib/Controller/GroupsController.php
index 4b05f772e8f27..f0712d122618a 100644
--- a/apps/provisioning_api/lib/Controller/GroupsController.php
+++ b/apps/provisioning_api/lib/Controller/GroupsController.php
@@ -21,6 +21,7 @@
 use OCP\AppFramework\OCS\OCSForbiddenException;
 use OCP\AppFramework\OCS\OCSNotFoundException;
 use OCP\AppFramework\OCSController;
+use OCP\Group\ISubAdmin;
 use OCP\IConfig;
 use OCP\IGroup;
 use OCP\IGroupManager;
@@ -47,6 +48,7 @@ public function __construct(string $appName,
 		IGroupManager $groupManager,
 		IUserSession $userSession,
 		IAccountManager $accountManager,
+		ISubAdmin $subAdminManager,
 		IFactory $l10nFactory,
 		LoggerInterface $logger) {
 		parent::__construct($appName,
@@ -56,6 +58,7 @@ public function __construct(string $appName,
 			$groupManager,
 			$userSession,
 			$accountManager,
+			$subAdminManager,
 			$l10nFactory
 		);
 
diff --git a/apps/provisioning_api/lib/Controller/UsersController.php b/apps/provisioning_api/lib/Controller/UsersController.php
index 5be0b6b1464b2..273e63c742dab 100644
--- a/apps/provisioning_api/lib/Controller/UsersController.php
+++ b/apps/provisioning_api/lib/Controller/UsersController.php
@@ -31,6 +31,7 @@
 use OCP\AppFramework\OCS\OCSNotFoundException;
 use OCP\AppFramework\OCSController;
 use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Group\ISubAdmin;
 use OCP\HintException;
 use OCP\IConfig;
 use OCP\IGroup;
@@ -63,6 +64,7 @@ public function __construct(
 		IGroupManager $groupManager,
 		IUserSession $userSession,
 		IAccountManager $accountManager,
+		ISubAdmin $subAdminManager,
 		IFactory $l10nFactory,
 		private IURLGenerator $urlGenerator,
 		private LoggerInterface $logger,
@@ -81,6 +83,7 @@ public function __construct(
 			$groupManager,
 			$userSession,
 			$accountManager,
+			$subAdminManager,
 			$l10nFactory
 		);
 
@@ -946,7 +949,7 @@ public function editUser(string $userId, string $key, string $value): DataRespon
 			$permittedFields[] = IAccountManager::PROPERTY_PROFILE_ENABLED;
 			$permittedFields[] = IAccountManager::PROPERTY_BIRTHDATE;
 			$permittedFields[] = IAccountManager::PROPERTY_PRONOUNS;
-		
+
 			$permittedFields[] = IAccountManager::PROPERTY_PHONE . self::SCOPE_SUFFIX;
 			$permittedFields[] = IAccountManager::PROPERTY_ADDRESS . self::SCOPE_SUFFIX;
 			$permittedFields[] = IAccountManager::PROPERTY_WEBSITE . self::SCOPE_SUFFIX;
diff --git a/lib/private/SubAdmin.php b/lib/private/SubAdmin.php
index c025ab7b01246..335e901a321b6 100644
--- a/lib/private/SubAdmin.php
+++ b/lib/private/SubAdmin.php
@@ -259,6 +259,9 @@ public function isSubAdmin(IUser $user): bool {
 	 * @return bool
 	 */
 	public function isUserAccessible(IUser $subadmin, IUser $user): bool {
+		if ($subadmin->getUID() === $user->getUID()) {
+			return true;
+		}
 		if (!$this->isSubAdmin($subadmin)) {
 			return false;
 		}