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Dancer-1.3522
⭐ Starred 738 / Dancer::Cookie
Security Advisories (1)
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.

NAME

Dancer::Cookie - class representing cookies

VERSION

version 1.3522

SYNOPSIS

use Dancer::Cookie;

my $cookie = Dancer::Cookie->new(
    name => $cookie_name, value => $cookie_value
);

DESCRIPTION

Dancer::Cookie provides an HTTP cookie object to work with cookies.

ATTRIBUTES

name

The cookie's name.

value

The cookie's value.

expires

The cookie's expiration date. There are several formats.

Unix epoch time like 1288817656 to mean "Wed, 03-Nov-2010 20:54:16 GMT"

A human-readable offset from the current time such as "2 hours". It currently understands...

s second seconds sec secs
m minute minutes min mins
h hr hour hours
d day days
w week weeks
M month months
y year years

Months and years are currently fixed at 30 and 365 days. This may change.

Anything else is used verbatim.

domain

The cookie's domain.

path

The cookie's path.

secure

If true, it instructs the client to only serve the cookie over secure connections such as HTTPS.

http_only

By default cookies are created with a property named HttpOnly, that can be used for security, forcing the cookie to be used only by the server (via HTTP) and not by any JavaScript code.

If your cookie is meant to be used by some JavaScript code, set this attribute to 0.

METHODS/SUBROUTINES

new

Create a new Dancer::Cookie object.

You can set any attribute described in the ATTRIBUTES section above.

init

Runs an expiration test and sets a default path if not set.

to_header

Creates a proper HTTP cookie header from the content.

AUTHOR

Dancer Core Developers

COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by Alexis Sukrieh.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.