/ 
Plack-Middleware-Session-0.30
⭐ Starred 40
/ Plack::Session::Cleanup
Security Advisories (1)
CVE-2025-40923 (2025-07-16)

Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely. The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage. Predicable session ids could allow an attacker to gain access to systems.

NAME

Plack::Session::Cleanup - Run code when the environment is destroyed

SYNOPSIS

$env->{'run_at_cleanup'} = Plack::Session::Cleanup->new(
    sub {
        # ...
    }
);

DESCRIPTION

This provides a way for Plack::Middleware::Session to run code when the environment is cleaned up.

METHODS

new ( $coderef )

Executes the given code reference when the object is DESTROY'd. Care should be taken that the given code reference does not close over $env, creating a cycle and preventing the $env from being destroyed.