CVE-2026-79577 Auth bypass in n/a

Critical 9.8 Published Updated

Attackers can bypass authentication and log in without a password by sending a crafted POST request to the login component.

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-2026-79577?

CVE-2026-79577 is a critical authentication bypass vulnerability in n/a, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in the /cas/login component of sso-master v1.0.0 allows attackers to authenticate into the application without a password via sending a crafted POST request.

Weakness: CWE-284

Which versions are affected by CVE-2026-79577?

How do I fix CVE-2026-79577?

No fix has been published for CVE-2026-79577 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-79577 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-79577 exists.

Sources

Also known as GHSA-55qv-ff37-vh3v.

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