diff --git a/hgext/narrow/narrowcommands.py b/hgext/narrow/narrowcommands.py
--- a/hgext/narrow/narrowcommands.py
+++ b/hgext/narrow/narrowcommands.py
@@ -416,7 +416,7 @@ def _widen(
                     repo, trmanager.transaction, source=b'widen'
                 )
                 # TODO: we should catch error.Abort here
-                bundle2.processbundle(repo, bundle, op=op)
+                bundle2.processbundle(repo, bundle, op=op, remote=remote)
 
         if ellipsesremote:
             with ds.parentchange():
diff --git a/mercurial/bundle2.py b/mercurial/bundle2.py
--- a/mercurial/bundle2.py
+++ b/mercurial/bundle2.py
@@ -315,8 +315,17 @@ class bundleoperation:
     * a way to construct a bundle response when applicable.
     """
 
-    def __init__(self, repo, transactiongetter, captureoutput=True, source=b''):
+    def __init__(
+        self,
+        repo,
+        transactiongetter,
+        captureoutput=True,
+        source=b'',
+        remote=None,
+    ):
         self.repo = repo
+        # the peer object who produced this bundle if available
+        self.remote = remote
         self.ui = repo.ui
         self.records = unbundlerecords()
         self.reply = None
@@ -363,7 +372,7 @@ def _notransaction():
     raise TransactionUnavailable()
 
 
-def applybundle(repo, unbundler, tr, source, url=None, **kwargs):
+def applybundle(repo, unbundler, tr, source, url=None, remote=None, **kwargs):
     # transform me into unbundler.apply() as soon as the freeze is lifted
     if isinstance(unbundler, unbundle20):
         tr.hookargs[b'bundle2'] = b'1'
@@ -371,10 +380,12 @@ def applybundle(repo, unbundler, tr, sou
             tr.hookargs[b'source'] = source
         if url is not None and b'url' not in tr.hookargs:
             tr.hookargs[b'url'] = url
-        return processbundle(repo, unbundler, lambda: tr, source=source)
+        return processbundle(
+            repo, unbundler, lambda: tr, source=source, remote=remote
+        )
     else:
         # the transactiongetter won't be used, but we might as well set it
-        op = bundleoperation(repo, lambda: tr, source=source)
+        op = bundleoperation(repo, lambda: tr, source=source, remote=remote)
         _processchangegroup(op, unbundler, tr, source, url, **kwargs)
         return op
 
@@ -450,7 +461,14 @@ class partiterator:
         )
 
 
-def processbundle(repo, unbundler, transactiongetter=None, op=None, source=b''):
+def processbundle(
+    repo,
+    unbundler,
+    transactiongetter=None,
+    op=None,
+    source=b'',
+    remote=None,
+):
     """This function process a bundle, apply effect to/from a repo
 
     It iterates over each part then searches for and uses the proper handling
@@ -466,7 +484,12 @@ def processbundle(repo, unbundler, trans
     if op is None:
         if transactiongetter is None:
             transactiongetter = _notransaction
-        op = bundleoperation(repo, transactiongetter, source=source)
+        op = bundleoperation(
+            repo,
+            transactiongetter,
+            source=source,
+            remote=remote,
+        )
     # todo:
     # - replace this is a init function soon.
     # - exception catching
diff --git a/mercurial/exchange.py b/mercurial/exchange.py
--- a/mercurial/exchange.py
+++ b/mercurial/exchange.py
@@ -1183,7 +1183,12 @@ def _pushbundle2(pushop):
             trgetter = None
             if pushback:
                 trgetter = pushop.trmanager.transaction
-            op = bundle2.processbundle(pushop.repo, reply, trgetter)
+            op = bundle2.processbundle(
+                pushop.repo,
+                reply,
+                trgetter,
+                remote=pushop.remote,
+            )
         except error.BundleValueError as exc:
             raise error.RemoteError(_(b'missing support for %s') % exc)
         except bundle2.AbortFromPart as exc:
@@ -1903,10 +1908,18 @@ def _pullbundle2(pullop):
 
         try:
             op = bundle2.bundleoperation(
-                pullop.repo, pullop.gettransaction, source=b'pull'
+                pullop.repo,
+                pullop.gettransaction,
+                source=b'pull',
+                remote=pullop.remote,
             )
             op.modes[b'bookmarks'] = b'records'
-            bundle2.processbundle(pullop.repo, bundle, op=op)
+            bundle2.processbundle(
+                pullop.repo,
+                bundle,
+                op=op,
+                remote=pullop.remote,
+            )
         except bundle2.AbortFromPart as exc:
             pullop.repo.ui.error(_(b'remote: abort: %s\n') % exc)
             raise error.RemoteError(_(b'pull failed on remote'), hint=exc.hint)
@@ -1995,7 +2008,12 @@ def _pullchangeset(pullop):
             ).result()
 
     bundleop = bundle2.applybundle(
-        pullop.repo, cg, tr, b'pull', pullop.remote.url()
+        pullop.repo,
+        cg,
+        tr,
+        b'pull',
+        pullop.remote.url(),
+        remote=pullop.remote,
     )
     pullop.cgresult = bundle2.combinechangegroupresults(bundleop)