CVE-2025-40924 – Catalyst::Plugin::Session Insecure Session ID Generation

CVE ID : CVE-2025-40924

Published : July 17, 2025, 2:15 p.m. | 25 minutes ago

Description : Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely.

The session id is generated from a (usually SHA-1) hash of a simple counter, the epoch time, the built-in rand function, the PID and the current Catalyst context. This information is of low entropy. 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.

Severity: 0.0 | NA

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