Meta AI Bug in Deployed Service Reportedly Allowed Potential Access to Other Users' Prompts and Responses
Description
A security researcher reported a vulnerability in Meta AI's deployed chatbot service that, under certain conditions, could allow an unauthorized user to view another user's prompts and AI-generated responses. The flaw reportedly involved guessable prompt IDs and insufficient server-side authorization checks. Meta reportedly fixed the issue in January 2025 and found no evidence of malicious exploitation, awarding the researcher a bug bounty.
Actors
Alleged Deployers
- meta
Alleged Developers
- meta
- large-language-model-developers
- chatbot-developers
Harmed Parties
- meta-users
- meta-ai-users
- general-public
- privacy
- biometric-data-subjects
Classification
Risk Domain
Privacy & SecurityRisk Subdomain
2.1. Compromise of privacy by obtaining, leaking or correctly inferring sensitive information
MIT Risk Profile
Topics
Source
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