diff --git a/pkgs/development/python-modules/flower/default.nix b/pkgs/development/python-modules/flower/default.nix
index c7a2ba59db3..c8c9b7f4b19 100644
--- a/pkgs/development/python-modules/flower/default.nix
+++ b/pkgs/development/python-modules/flower/default.nix
@@ -54,5 +54,8 @@ buildPythonPackage rec {
     homepage = "https://github.com/mher/flower";
     license = licenses.bsdOriginal;
     maintainers = with maintainers; [ arnoldfarkas ];
+    knownVulnerabilities = [
+      "CVE-2022-30034"
+    ];
   };
 }