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8.2
Apache::SessionX for Perl Generates Predictable Session IDs
CVE-2025-40932
Summary
Apache::SessionX versions through 2.01 for Perl create session IDs that can be guessed by an attacker, potentially allowing unauthorized access to systems. This is a security risk because it can be exploited by malicious users. To mitigate this issue, update to a newer version of Apache::SessionX that uses a more secure session ID generator.
Original title
Apache::SessionX versions through 2.01 for Perl create insecure session id.
Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 r...
Original description
Apache::SessionX versions through 2.01 for Perl create insecure session id.
Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 returns a MD5 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.
Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 returns a MD5 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.
osv CVSS3.1
8.2
- https://metacpan.org/release/GRICHTER/Apache-SessionX-2.01/source/SessionX/Gener... Third Party Advisory
Published: 27 Feb 2026 · Updated: 13 Mar 2026 · First seen: 13 Mar 2026