I got an email from Google play store regarding - \"Google Play warning: You are using a vulnerable version of libpng\".
Email contains the below information - http
The vulnerable version of libpng in OpenCV 2.4.x was updated in OpenCV 2.4.13.1. It can be downloaded from here.
As @Simon says, OpenCV 3.x is not affected.
More info: #6694 OpenCV 2.x uses vulnerable version of libpng