Secunia Security Advisory – Gentoo has issued an update for mercurial. This fixes a security issue, which can be exploited by malicious people to manipulate certain data.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/68263/sa31110.txt
Source: https://packetstormsecurity.com/files/68263/Secunia-Security-Advisory-31110.html