Executive Summary
Data exposure flaws in Dify's multi-tenant cloud could let attackers read other tenants' private chats, preview their documents and reach internal APIs; Dify powers about 1 million apps.
What Happened
Attackers could abuse Dify's multi-tenant cloud service to read private chats, preview other tenants' documents, and reach internal APIs. The post Data Exposure Flaws Threaten Dify AI Platform Used by 1 Million Apps appeared first on SecurityWeek .
Affected Products
- Dify
Vulnerability / Attack Technique
Cross-tenant data exposure
Technical Mechanism
Tenant isolation weaknesses allowed access to other customers' AI conversations and documents.
AI Security Category
LLM02:2025 Sensitive Information Disclosure
Relevant Frameworks
RealGround Analysis
Multi-tenant AI platforms hold many customers' conversations in one place. RealGround analysis: ask AI platform vendors how tenant isolation is tested.
Recommended Controls
- Update self-hosted Dify
- Ask hosted AI platforms about tenant isolation testing
- Avoid sending highly sensitive data to shared AI platforms
Related RealGround Service
Secure AI Agent Build · or start with the free AI Agent Security Scanner.
Sources
securityweek.com: https://www.securityweek.com/data-exposure-flaws-threaten-dify-ai-platform-powering-over-1-million-apps/
Summary and analysis written by RealGround from the source above; last updated 2026-10-18.