There is a new pull request by pfpulux against master on the void-packages repository https://github.com/pfpulux/void-packages python-Werkzeug https://github.com/void-linux/void-packages/pull/12856 python-Werkzeug: update to 0.15.4. A patch file from https://github.com/void-linux/void-packages/pull/12856.patch is attached