See how openr compares to other vendors in security performance
opentmpfiles through 0.3.1 allows local users to take ownership of arbitrary files because d entries are mishandled and allow a symlink attack.
OpenRC opentmpfiles through 0.1.3, when the fs.protectedhardlinks sysctl is turned off, allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run.