CVE-2024-58135

CVE-2024-58135: Mojolicious versions from 7.28 through 9.45 for Perl will generate weak HMAC session cookie secrets via "mojo generate app" by default

Vendor Sri
Product Mojolicious
Weakness CWE-338
Published May 3, 2025
Last update June 5, 2026

CVSS base score

What the vulnerability does

01Description

Mojolicious versions from 7.28 through 9.45 for Perl will generate weak HMAC session cookie secrets via "mojo generate app" by default. When creating a default app skeleton with the "mojo generate app" tool, a weak secret is written to the application's configuration file using the insecure rand() function, and used for authenticating and protecting the integrity of the application's sessions. This may allow an attacker to brute force the application's session keys. Release 9.46 fixes the issue by providing high quality randomness, even in absence of CryptX. Users should be aware that the update does not replace previously generated weak secrets. A secret generated with the previous version MUST be replaced to ensure the updated version is using a strong secret.

Key dates

02Disclosure timeline

May 3, 2025 CVE published
June 5, 2026 Record updated