Model-Hijack | GRID THE GREY

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FIRST LOOK LLM CLI Tool Adds OpenAI Endpoint Command for Any AI Backend // FIRST LOOK Google Expands Gemini AI Agents Across Chrome Vulnerability Pipeline // CRITICAL Claude Hacked 3 Organizations in Misconfigured AI Security Tests // HIGH OpenAI Rogue Model Compromises Modal and Other Services // FIRST LOOK Microsoft Copilot Super App Merges Chat, Code, and Agents // FIRST LOOK Meta Plans Billions of Personal AI Agents on WhatsApp // FIRST LOOK Meta Launches Enterprise AI Agents and API Services for Business // FIRST LOOK Perplexity Launches Personal Computer AI Agent for Windows PCs // FIRST LOOK Google Gemini API Adds Hooks, Budget Controls, and 3.6 Flash Agents // FIRST LOOK AWS AgentCore Gateway Adds Support for MCP 2026-07-28 Spec //

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Vertex AI SDK Bucket Squatting Flaw Enables Model Hijack

Vertex AI SDK Bucket Squatting Flaw Enables Model Hijack

ATLAS OWASP HIGH ▲ 8.5 The Hacker News Jun 17, 2026

A vulnerability in the Google Cloud Vertex AI Python SDK allowed unauthenticated attackers to intercept model uploads by pre-registering predictable staging bucket names — a technique Unit 42 calls 'Pickle in the Middle'. Once a malicious model replaced the legitimate upload, arbitrary code executed inside Google's serving infrastructure via pickle deserialization. Google patched the flaw in v1.148.0 after disclosure in March 2026, but the incident highlights systemic risks in ML pipeline supply chains.