From acccc9e837e66159818ff50433656ffc9012a5de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@dashbit.co>
Date: Wed, 6 Aug 2025 19:03:25 +0200
Subject: [PATCH] Escape more regex characters, closes #3041

---
 lib/livebook_web/helpers/session_helpers.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/livebook_web/helpers/session_helpers.ex b/lib/livebook_web/helpers/session_helpers.ex
index 33f7bdc3e..879ce74f0 100644
--- a/lib/livebook_web/helpers/session_helpers.ex
+++ b/lib/livebook_web/helpers/session_helpers.ex
@@ -221,7 +221,7 @@ defmodule LivebookWeb.SessionHelpers do
   @spec sanitize_file_entry_name(String.t()) :: String.t() | nil
   def sanitize_file_entry_name(client_name) do
     client_name
-    |> String.replace(~r/[^\s\w-.]/u, "")
+    |> String.replace(~r/[^\s\w\-\.]/u, "")
     |> String.trim()
     |> String.replace(~r/\s+/u, "_")
     |> case do