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::Logger::Capture - Capture dancer logs

VERSION

version 1.3522

SYNOPSIS

set logger => "capture";

my $trap = Dancer::Logger::Capture->trap;
my $logs = $trap->read;

DESCRIPTION

This is a logger class for Dancer which captures all logs to an object.

Its primary purpose is for testing.

Methods

trap

Returns the Dancer::Logger::Capture::Trap object used to capture and read logs.

EXAMPLE

use Test::More import => ['!pass'], tests => 2;
use Dancer;

set logger => 'capture';

warning "Danger!  Warning!";
debug   "I like pie.";

my $trap = Dancer::Logger::Capture->trap;
is_deeply $trap->read, [
    { level => "warning", message => "Danger!  Warning!" },
    { level => "debug",   message => "I like pie.", }
];

# each call to read cleans the trap
is_deeply $trap->read, [];

SEE ALSO

Dancer::Logger, Dancer::Logger::Capture::Trap

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.