Mapping container user and group IDs to host

An information handling system may include at least one processor and a memory. The information handling system may be configured to: host a container; execute a containerized application within the container, wherein the containerized application executes with privileges associated with a container-internal user; determine an association between the container-internal user and a host user associated with an operating system external to the container, wherein the determining is based on a cache that maintains a mapping between container-internal users and host users; and grant privileges to the containerized application based on the host user.