It was discovered that sos-collector does not properly set the default permissions of newly created files, making all files created by the tool readable by any local user. A local attacker may use this flaw by waiting for a legit user to run sos-collector and steal the collected data in the /var/tmp directory.
https://github.com/sosreport/sos-collector/commit/72058f9253e7ed8c7243e2ff76a16d97b03d65ed