CVE-2026-4400 in Millie Chatbot

Sumário (Inglês)

Insecure Direct Object Reference (IDOR) vulnerability in 1millionbot Millie chat that allows private conversations of other users being viewed by simply changing the conversation ID. The vulnerability is present in the endpoint 'api.1millionbot.com/api/public/conversations/' and, if exploited, could allow a remote attacker to access other users private chatbot conversations, revealing sensitive or confidential data without requiring credentials or impersonating users. In order for the vulnerability to be exploited, the attacker must have the user's conversation ID.

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Responsável

INCIBE

Reservar

18/03/2026

Divulgação

31/03/2026

Estado

Confirmado

Inscrições

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidade	CWE	Exp	Con	CVE
354359	1millionbot Millie Chatbot conversations Elevação de Privilégios	639	Não definido	Não definido	CVE-2026-4400

Fontes

• MITRE
• NVD
• CVE Details