/ 
Dancer-0.9904
/ Dancer::Config
Security Advisories (3)
CVE-2026-5080 (2026-04-30)

Dancer::Session::Abstract versions through 1.3522 for Perl generates session ids insecurely. The session id is generated from summing the character codepoints of the absolute pathname with the process id, the epoch time and calls to the built-in rand() function to return a number between 0 and 999-billion, and concatenating that result three times. The path name might be known or guessed by an attacker, especially for applications known to be written using Dancer with standard installation locations. The epoch time can be guessed by an attacker, and may be leaked in the HTTP header. The process id comes from a small set of numbers, and workers may have sequential process ids. The built-in rand() function is seeded with 32-bits and is considered unsuitable for security applications. Predictable session ids could allow an attacker to gain access to systems.

CVE-2012-5572 (2014-05-30)

CRLF injection vulnerability in the cookie method allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a cookie name.

CVE-2011-1589 (2011-04-05)

Directory traversal vulnerability (Mojolicious report, but Dancer was vulnerable as well).

NAME

Dancer::Config

DESCRIPTION

Setting registry for Dancer

SETTINGS

You can change a setting with the keyword set, like the following:

use Dancer;

# changing default settings
set port => 8080;
set content_type => 'text/plain';
set access_log => 0;

Here is the list of all supported settings.

server (UNSUPPORTED)

The IP address or servername to bind to. This setting is not yet implemented.

port

The port Dancer will listen to.

Default value is 3000.

content_type

The default content type of outgoing content. Default value is 'text/html'.

charset

The default charset of outgoing content. Default value is 'UTF-8'.

access_log

If set to 1 (default), Dancer will print on STDEER one line per hit received.

public

This is the path of the public directory, where static files are stored. Any existing file in that directory will be served as a static file, before mathcing any route.

By default, it points to APPDIR/public where APPDIR is the directory that contains your Dancer script.

AUTHOR

This module has been written by Alexis Sukrieh <sukria@cpan.org>

LICENSE

This module is free software and is released under the same terms as Perl itself.

SEE ALSO

Dancer