cpio on FreeBSD 2.1.0, Debian GNU/Linux 3.0, and possibly other operating systems, uses a 0 umask when creating files using the -O (archive) or -F options, which creates the files with mode 0666 and allows local users to read or overwrite those files.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Debian_linux | Debian | 3.0 | 3.0 |
| Freebsd | Freebsd | 2.1.0 | 2.1.0 |
| Mandrake_linux | Mandrakesoft | 9.2 | 9.2 |
| Mandrake_linux | Mandrakesoft | 10.0 | 10.0 |
| Mandrake_linux | Mandrakesoft | 10.1 | 10.1 |
| Mandrake_linux | Mandrakesoft | cs2.1 | cs2.1 |
| Mandrake_linux | Mandrakesoft | cs3.0 | cs3.0 |
| Enterprise_linux | Redhat | 4.0 | 4.0 |
| Enterprise_linux | Redhat | 4.0 | 4.0 |
| Enterprise_linux | Redhat | 4.0 | 4.0 |
| Enterprise_linux_desktop | Redhat | 4.0 | 4.0 |
| Ubuntu_linux | Ubuntu | 4.10 | 4.10 |
| Red Hat Enterprise Linux 2.1 | RedHat | cpio | * |
| Red Hat Enterprise Linux 3 | RedHat | cpio-0:2.5-3e.3 | * |
| Red Hat Enterprise Linux 4 | RedHat | cpio-0:2.5-7.EL4.1 | * |
| Cpio | Ubuntu | dapper | * |
| Cpio | Ubuntu | devel | * |
| Cpio | Ubuntu | edgy | * |
| Cpio | Ubuntu | feisty | * |