CVE-2025-40923
Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely
Summary
Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-40923 libplack-middleware-session-perl
References
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- patch github.com
- web openwall.com
- web cpan.org
- web metacpan.org
- web security.metacpan.org