int socket_connect_unix(const char *filename)
{
	struct sockaddr_un name;
	int sfd = -1;
	size_t size;
	struct stat fst;

	if (stat(filename, &fst) != 0) {
		if (verbose >= 2)
			fprintf(stderr, "%s: stat '%s': %s\n", __func__, filename,
					strerror(errno));
		return -1;
	}
	if (!S_ISSOCK(fst.st_mode)) {
		if (verbose >= 2)
			fprintf(stderr, "%s: File '%s' is not a socket!\n", __func__,
					filename);
		return -1;
	}
	if ((sfd = socket(PF_LOCAL, SOCK_STREAM, 0)) < 0) {
		if (verbose >= 2)
			fprintf(stderr, "%s: socket: %s\n", __func__, strerror(errno));
		return -1;
	}
	name.sun_family = AF_LOCAL;
	strncpy(name.sun_path, filename, sizeof(name.sun_path));
	name.sun_path[sizeof(name.sun_path) - 1] = 0;

	size = (offsetof(struct sockaddr_un, sun_path)
			+ strlen(name.sun_path) + 1);

	if (connect(sfd, (struct sockaddr *) &name, size) < 0) {
		socket_close(sfd);
		if (verbose >= 2)
			fprintf(stderr, "%s: connect: %s\n", __func__,
					strerror(errno));
		return -1;
	}

	return sfd;
}

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.