Static file serving using router.Static and osfs.FS allows clients to access any file on the host file system using relative paths because the requested path is not sanitized and . and .. segments are accepted. The files will be returned as a response, provided the system user running the Go application has read access to the requested file.
As a workaround, use fsutil.NewEmbed(embeddedFS) from the goyave.dev/goyave/v5/util/fsutil package to serve static content using Router.Static instead of &osfs.FS. Embedded file systems are rooted to the specified directory, making it impossible to navigate outside of the developers' intended directory.
{ "review_status": "REVIEWED", "url": "https://pkg.go.dev/vuln/GO-2024-3293" }