diff --git a/data/web/json_api.php b/data/web/json_api.php
index 3a6ad2659..b6e58c47d 100644
--- a/data/web/json_api.php
+++ b/data/web/json_api.php
@@ -1549,7 +1549,14 @@ if (isset($_GET['query'])) {
             if ($object == "sync-status") {
               process_get_return(\Mailcow\Identity\IdentityModule::fromGlobals()->api->getStatus());
             } elseif($_SESSION['mailcow_cc_role'] === 'admin') {
-              process_get_return($iam_settings);
+              $iam_settings_out = $iam_settings;
+              // Read-only API keys never get the secrets of the identity provider
+              if (($_SESSION['mailcow_cc_api_access'] ?? '') == 'ro') {
+                foreach (array('client_secret', 'bindpass', 'access_token') as $iam_secret) {
+                  if (isset($iam_settings_out[$iam_secret])) $iam_settings_out[$iam_secret] = '*';
+                }
+              }
+              process_get_return($iam_settings_out);
             } else {
               process_get_return(null);
             }
diff --git a/data/web/syncjob-oauth.php b/data/web/syncjob-oauth.php
index 1046dc97a..44c60370c 100644
--- a/data/web/syncjob-oauth.php
+++ b/data/web/syncjob-oauth.php
@@ -35,7 +35,9 @@ if (empty($_SESSION['mailcow_cc_username']) || empty($_SESSION['mailcow_cc_role'
 }
 $context = \Mailcow\Core\Context::fromSession($_SESSION);
 $imapsync = \Mailcow\Imapsync\ImapsyncModule::fromGlobals($context);
-if (!$context->hasAcl('syncjobs')) {
+// Storing a token is a write: no read-only API keys, no session with pending 2FA setup or password update
+if (!$context->hasAcl('syncjobs') || $context->isReadOnlyApi()
+  || !empty($_SESSION['pending_tfa_setup']) || !empty($_SESSION['pending_pw_update'])) {
   syncjob_oauth_finish(false, array('error' => 'access_denied'));
 }