CVE-2026-92787 Feast through 0.66.0 Authentication Bypass via Unverified Token

Critical 9.3 Published Updated

Attackers bypass authentication by presenting unverified JWT tokens, gaining full read and write access to all server entities and permissions.

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-2026-92787?

CVE-2026-92787 is a critical authentication bypass vulnerability in feast-dev feast, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Feast through 0.66.0 fails to verify JWT token signatures before establishing user identity, allowing attackers to bypass all role-based access control by presenting an unverified token with a hardcoded claim value. Attackers can obtain trusted internal identity and gain unchecked read and write access to all entities, feature views, data sources, and permission policies on the server.

Weakness: CWE-798

Which versions are affected by CVE-2026-92787?

How do I fix CVE-2026-92787?

No fix has been published for CVE-2026-92787 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-2026-92787 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-92787 exists.

Sources

Also known as GHSA-4rxv-8f9g-9h5w.

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