diff --git a/ckan/common.py b/ckan/common.py
index 008857bfcbe..32aaf51f2d7 100644
--- a/ckan/common.py
+++ b/ckan/common.py
@@ -306,6 +306,15 @@ def aslist(obj: Any, sep: Optional[str] = None, strip: bool = True) -> Any:
         return [obj]
 
 
+def repr_untrusted(danger: Any):
+    """
+    repr-format danger and truncate e.g. for logging untrusted input
+    """
+    r = repr(danger)
+    rtrunc = r[:200]
+    return rtrunc + '…' if r != rtrunc else r
+
+
 local = Local()
 
 # This a proxy to the bounded config object
diff --git a/ckan/views/user.py b/ckan/views/user.py
index ba5f2bb679a..72e590547b0 100644
--- a/ckan/views/user.py
+++ b/ckan/views/user.py
@@ -25,7 +25,8 @@
 import ckan.plugins as plugins
 from ckan import authz
 from ckan.common import (
-    _, config, g, request, current_user, login_user, logout_user, session
+    _, config, g, request, current_user, login_user, logout_user, session,
+    repr_untrusted
 )
 from ckan.types import Context, Schema, Response
 from ckan.lib import signals
@@ -675,7 +676,7 @@ def post(self) -> Response:
         if id in (None, u''):
             h.flash_error(_(u'Email is required'))
             return h.redirect_to(u'user.request_reset')
-        log.info(u'Password reset requested for user "{}"'.format(id))
+        log.info('Password reset requested for user %s', repr_untrusted(id))
 
         context: Context = {
             'user': current_user.name,
@@ -716,8 +717,8 @@ def post(self) -> Response:
                 pass
 
         if not user_objs:
-            log.info(u'User requested reset link for unknown user: {}'
-                     .format(id))
+            log.info('User requested reset link for unknown user: %s',
+                     repr_untrusted(id))
 
         for user_obj in user_objs:
             log.info(u'Emailing reset link to user: {}'