We advise everyone using the fully static Toxic builds that are listed on our download page to update them to the newest version by re-downloading them from that page. Those Toxic builds use musl-libc and there was a fairly serious bug discovered in musl-libc (CVE-2017-15650) and patched yesterday . The new Toxic builds include this patch. This affects only the fully static Toxic builds, no other builds currently use musl-libc.