The Briefing RoomJune 16, 2026via Reuters Technology

Google Vertex AI SDK Flaw Let Attackers Hijack Model Uploads via Bucket Squatting - The Hacker News

Why it matters

A significant security vulnerability in a major cloud AI platform exposes the infrastructure risks enterprises face when adopting AI systems at scale. This is a governance and security decision for CTOs and AI leaders evaluating vendor lock-in and control.

Key signals

  • Google Vertex AI SDK flaw enabled remote code execution (RCE)
  • Attack vector: bucket squatting on model uploads
  • Cross-tenant exploitation possible
  • Model poisoning vulnerability identified
  • Vulnerability disclosed by Unit 42 (Palo Alto Networks)
  • Published: June 16, 2026

The hook

Google's Vertex AI SDK had a critical flaw that let attackers hijack model uploads and execute code across customer tenants. Here's what enterprise AI teams need to know.

Google Vertex AI SDK Flaw Let Attackers Hijack Model Uploads via Bucket Squatting  The Hacker News Pickle in the Middle – Hijacking Vertex AI Model Uploads for Cross-Tenant RCE  Unit 42 Google’s Vertex AI SDK could allow RCE through bucket squatting  csoonline.com Google Cloud Vertex AI Vulnerability Lets Attackers Take Over and Poison AI Models  gbhackers.com Google Cloud Vertex AI SDK flaw allowed model hijacking and code execution | brief | SC Media  SC Media

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Google Vertex AI SDK Flaw Let Attackers Hijack Model Uploads via Bucket Squatting - The Hacker News | KeyNews.AI