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CVE-2025-40924

6.5 · MEDIUM

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

Published Jul 17, 2025CWE-338EPSS 0.28%

Overview

CVE-2025-40924 is a medium-severity vulnerability. It was published on July 17, 2025 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce1008286db8c571b6ee98c22c.patchGitHubgithub.com/perl-catalyst/Catalyst-Plugin-Session/pull/5Refmetacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catalyst/Plugin/Session.pm#L632

How CyberStrike helps

Frequently asked questions

What is CVE-2025-40924?

CVE-2025-40924 is a medium-severity vulnerability. It was published on July 17, 2025 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-40924?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-40924?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-40924?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-40924 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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