CVE-2026-9692 Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely

Medium 5.3 Published Updated

Insecure session ID generation allows attackers to predict session tokens and potentially hijack user accounts.

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-2026-9692?

CVE-2026-9692 is a medium-severity vulnerability in HAYAJO Mojolicious::Sessions::Storable, published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely.

The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, the heap address of an anonymous hash, and the PID.

These are predictable or low-entropy sources that are unsuitable for security purposes.

Weakness: CWE-340, CWE-338

Which versions are affected by CVE-2026-9692?

How do I fix CVE-2026-9692?

No fix has been published for CVE-2026-9692 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9692 being exploited?

There is no known exploitation of CVE-2026-9692 in the wild and no public exploit code.

Sources

Also known as GHSA-3m67-fq74-f4qg.

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