diff --git a/addons/http_routing/models/ir_http.py b/addons/http_routing/models/ir_http.py
index 9ba68b5e0d5..b2a0ae131f3 100644
--- a/addons/http_routing/models/ir_http.py
+++ b/addons/http_routing/models/ir_http.py
@@ -518,6 +518,11 @@ class IrHttp(models.AbstractModel):
         string. This act as a light redirection, it does not return a
         3xx responses to the browser but still change the current URL.
         """
+        # WSGI encoding dance https://peps.python.org/pep-3333/#unicode-issues
+        if isinstance(path, str):
+            path = path.encode('utf-8')
+        path = path.decode('latin1', 'replace')
+
         if query_string is None:
             query_string = request.httprequest.environ['QUERY_STRING']
 
diff --git a/addons/website/tests/test_lang_url.py b/addons/website/tests/test_lang_url.py
index b4a49b1db20..1daad1e52eb 100644
--- a/addons/website/tests/test_lang_url.py
+++ b/addons/website/tests/test_lang_url.py
@@ -99,6 +99,13 @@ class TestLangUrl(HttpCase):
         [anchor] = doc.xpath('//a[@id="foo"]')
         self.assertEqual(anchor.get('href'), 'http://]', 'The invalid IP URL must be left untouched')
 
+    def test_06_reroute_unicode(self):
+        res = self.url_open('/fr/привет')
+        self.assertEqual(res.status_code, 404, "Rerouting didn't crash because of unicode path")
+
+        res = self.url_open('/fr/path?привет=1')
+        self.assertEqual(res.status_code, 404, "Rerouting didn't crash because of unicode query-string")
+
 
 @tagged('-at_install', 'post_install')
 class TestControllerRedirect(TestLangUrl):