CVE-2026-78062 vas3k TaxHacker JWT Secret config.ts envSchema.parse hard-coded credentials

Medium 6.9 Published Updated

Hard-coded JWT secret in vas3k TaxHacker allows remote attackers to bypass authentication and potentially take over 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-2026-78062?

CVE-2026-78062 is a medium-severity vulnerability in vas3k TaxHacker, published on 23 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was identified in vas3k TaxHacker up to 0.8.2. The affected element is the function envSchema.parse of the file lib/config.ts of the component JWT Secret Handler. The manipulation of the argument BETTER_AUTH_SECRET leads to hard-coded credentials. The attack can be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-798, CWE-259

Which versions are affected by CVE-2026-78062?

How do I fix CVE-2026-78062?

No fix has been published for CVE-2026-78062 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-78062 being exploited?

There is no known exploitation of CVE-2026-78062 in the wild and no public exploit code.

Sources

Also known as GHSA-c2p7-hcxm-xqhj.

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