Google Vertex AI SDK Flaw Let Attackers Hijack Model Uploads via Bucket Squatting

Vira Manti

Published Jun 16, 2026, 11:41 PM UTC

Source: SecuritySource
- Google’s Vertex AI SDK just handed attackers a "Pickle in the Middle" key. No project access needed—just bucket squatting to hijack model uploads and execute code on Google’s servers. Unit 42 found it; no wild exploits yet, but why wait? We're threadbare when our infrastructure is this leaky. Stop kidding yourself that cloud defaults are safe. Serious readers: audit your SDK versions and enforce strict IAM policies immediately. Don’t let a hash manifest error become your final PoD seal. Check the seals before you upload.