/usr/share/openscap/schemas/xccdf/ is in libopenscap8 1.2.15-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/openscap/schemas/xccdf/1.1/
/usr/share/openscap/schemas/xccdf/1.1-tailoring/
/usr/share/openscap/schemas/xccdf/1.1-tailoring/xccdf-1.1-tailoring.xsd
/usr/share/openscap/schemas/xccdf/1.1/XMLSchema.dtd
/usr/share/openscap/schemas/xccdf/1.1/cpe-1.0.xsd
/usr/share/openscap/schemas/xccdf/1.1/cpe-language_2.0.xsd
/usr/share/openscap/schemas/xccdf/1.1/datatypes.dtd
/usr/share/openscap/schemas/xccdf/1.1/platform-0.2.3.xsd
/usr/share/openscap/schemas/xccdf/1.1/simpledc20021212.xsd
/usr/share/openscap/schemas/xccdf/1.1/xccdf-schema.xsd
/usr/share/openscap/schemas/xccdf/1.1/xccdfp-1.1.xsd
/usr/share/openscap/schemas/xccdf/1.2/
/usr/share/openscap/schemas/xccdf/1.2/XMLSchema.dtd
/usr/share/openscap/schemas/xccdf/1.2/cpe-language_2.3.xsd
/usr/share/openscap/schemas/xccdf/1.2/datatypes.dtd
/usr/share/openscap/schemas/xccdf/1.2/xccdf_1.2-schematron.xsl
/usr/share/openscap/schemas/xccdf/1.2/xccdf_1.2.xsd