/ 
WebDyne-2.034
/ WebDyne::Session
Security Advisories (1)
CVE-2026-5084 (2026-05-11)

WebDyne::Session versions through 2.075 for Perl generates the session id insecurely. The session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum value based on the process id, the epoch time and the reference address of the object, but this information will have no effect on the overall quality of the seed of the message digest. The rand function is seeded by 32-bits and is predictable. It is considered unsuitable for cryptographic purposes. Predictable session ids could allow an attacker to gain access to systems. Note that WebDyne::Session versions 1.042 and earlier appear to be in separate distributions from WebDyne.

Name

WebDyne::Session - WebDyne extension module that implements browser sessions

Description

WebDyne::Session is a WebDyne extension module that implements browser sessions. An API provides access to get and set session ID's via browser cookies.

Documentation

Information on configuration and usage is availeble from the WebDyne site, http://webdyne.org/ - or from a snapshot of current documentation in PDF format available in the WebDyne module source /doc directory.

LICENSE and COPYRIGHT

This file is part of WebDyne.

This software is copyright (c) 2025 by Andrew Speer mailto:andrew.speer@isolutions.com.au.

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

Full license text is available at:

http://dev.perl.org/licenses/

Author

Andrew Speer, andrew@webdyne.org

Bugs

Please report any bugs or feature requests to "bug-webdyne-session at rt.cpan.org", or via http://rt.cpan.org/NoAuth/ReportBug.html?Queue=WebDyne-Session