pfSense

Certificates cannot be created via csr in the Certificate Manager since version 2.6.2. The introduced regex seems to have an incorrect syntax, which always leads to the "The field 'State or Province' contains invalid characters." error.

Source: https://github.com/pfsense/pfsense/blob/RELENG_2_6_0/src/usr/local/www/system_camanager.php#L208

Current pattern:

/[^a-zA-Z0-9\ \'\/~`\!@#\$%\^&\*\(\)_\-\+=\{\}\[\]\|;:"\<\>,\.\?\\\]/

Should be (one backslash removed):

/[^a-zA-Z0-9\ \'\/~`\!@#\$%\^&\*\(\)_\-\+=\{\}\[\]\|;:"\<\>,\.\?\\]/