CVE-2025-40923
Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely
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Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely
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.
Reserved 2025-04-16 | Published 2025-07-16 | Updated 2025-07-16 | Assigner CPANSecCWE-340 Generation of Predictable Numbers or Identifiers
CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator
metacpan.org/...ssion-0.34/source/lib/Plack/Session/State.pm
github.com/plack/Plack-Middleware-Session/pull/52
github.com/...1fbfbb355e34e7f4b3906f66cf958cedadd2b9be.patch
security.metacpan.org/...uides/random-data-for-security.html
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