diff --git a/pkgs/servers/squid/default.nix b/pkgs/servers/squid/default.nix
index 3ce09c88a848..5205115f8349 100644
--- a/pkgs/servers/squid/default.nix
+++ b/pkgs/servers/squid/default.nix
@@ -55,5 +55,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ raskin ];
+    knownVulnerabilities = [ "Squid has multiple unresolved security vulnerabilities, for more information see https://megamansec.github.io/Squid-Security-Audit/" ];
   };
 }