CVE-2024-58135 Weak cryptography in Mojolicious
Weak HMAC secrets in Mojolicious allow attackers to brute force session keys, potentially leading to account takeover or security bypass.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-58135?
CVE-2024-58135 is a medium-severity vulnerability in SRI Mojolicious, published on 3 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-338
Which versions are affected by CVE-2024-58135?
It affects 1 product.
Products include Mojolicious Mojolicious.
How do I fix CVE-2024-58135?
No fix has been published for CVE-2024-58135 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-58135 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-58135 exists.
Other vulnerabilities in SRI Mojolicious
Sources
Also known as AZL-61741, AZL-61822, DEBIAN-CVE-2024-58135, GHSA-3r5v-gmfp-3mh9, UBUNTU-CVE-2024-58135.