A relative path traversal in the "keyhint" option in repomd.xml parsing of libzypp before 17.38.12 can be used by attackers able to supply a malicious repository to inject or overwrite files in the target system as root.
https://github.com/openSUSE/libzypp/commit/294b1bad442d089ca671c5c03adc8031e3b29e04