A flaw was found in moodle where global search results could include author information on some activities where a user may not otherwise have access to it.
git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-71623
bugzilla.redhat.com/show_bug.cgi?id=2083592
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGF35EN5K2R6X3NTY3XPZSJ3UDASMXI6/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PIMSIRKCFLIC646K4GMUSZU7THOUVPAJ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCTWSE3JDMSYL7DPCMXMMJEXZSS6VIA5/
moodle.org/mod/forum/discuss.php?d=434580