diff --git a/pkgs/development/libraries/polkit/default.nix b/pkgs/development/libraries/polkit/default.nix
index 83f19e442c60..737a9a5badf2 100644
--- a/pkgs/development/libraries/polkit/default.nix
+++ b/pkgs/development/libraries/polkit/default.nix
@@ -21,6 +21,12 @@ stdenv.mkDerivation rec {
   };
 
   patches = [
+    # CVE-2019-6133 - See: https://bugs.chromium.org/p/project-zero/issues/detail?id=1692
+    (fetchpatch {
+      url = "https://gitlab.freedesktop.org/polkit/polkit/commit/6cc6aafee135ba44ea748250d7d29b562ca190e3.patch";
+      name = "CVE-2019-6133.patch";
+      sha256 = "0jjlbjzqcz96xh6w3nv3ss9jl0hhrcd7jg4aa5advf08ibaj29r1";
+    })
     # CVE-2018-19788 - high UID fixup
     (fetchpatch {
       url = "https://gitlab.freedesktop.org/polkit/polkit/commit/5230646dc6876ef6e27f57926b1bad348f636147.patch";