Basecamp disclosed on HackerOne: AWS keys and user cookie leakage...Basecamp supports uploading SVG pictures as avatars. Apparently, they are converted via an outdated librsvg version at Basecamp's servers. This version contains a vulnerability that allows leakage of the contents of an uninitialized memory block (that is, something is malloced, never initialized, and then used to build the preview image). Since it seems to be performed in the same unix process...
