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AgentProv

2026-04-17 · 2026-Q2

FastGPT Authentication and Password Change NoSQL Injection

Primary layerL6 Identity / Run

Which agent, run, or tenant is this?

The question layer 6 asks, and failed here.
Fixable
Vendor patch
Vendor response
Patched
In the wild
No
Actor
Attacker

Target

FastGPT AI agent building platform (before v4.14.9.5)

Impact

Unauthenticated attacker can log in as any user including root via MongoDB operator injection on the password field; authenticated attacker can bypass old-password verification to take over any account

Root cause

TypeScript type assertion without runtime validation on password login endpoint; NoSQL operator injection in password change endpoint

CVEs

Sources

Catalog

Cite this: AgentProv incident record: FastGPT Authentication and Password Change NoSQL Injection (2026-04-17). https://agentprov.com/incidents/2026-04-17-fastgpt-authentication-and-password-change-nosql-injection