Disallow initializing Versions with non-strings

Closes #23553.

1 files changed, 6 insertions, 1 deletions

diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index 6c91bec4a..4c268639d 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -163,7 +163,12 @@ class Version
   end
 
   def initialize(val, detected=false)
-    @version = val.to_s
+    if val.respond_to?(:to_str)
+      @version = val.to_str
+    else
+      raise TypeError, "Version value must be a string"
+    end
+
     @detected_from_url = detected
   end