CVE-2026-2473
HighSummary
A vulnerability in Vertex AI Experiments in Google Cloud Vertex AI (versions 1.21.0 up to but not including 1.133.0) stems from predictable Cloud Storage bucket naming. It allows an unauthenticated remote attacker to achieve cross-tenant remote code execution, model theft, and poisoning via Bucket Squatting.
Risk Assessment
The risk includes breaking tenant isolation, potentially leading to AI model theft, model poisoning, and remote code execution in the cloud environment. The attack requires no authentication, increasing its severity.
Recommendation
It is recommended to update Google Cloud Vertex AI to version 1.133.0 or later immediately, as the vulnerability has been patched. No further customer action is required.
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Original NVD description (English source)
Predictable bucket naming in Vertex AI Experiments in Google Cloud Vertex AI from version 1.21.0 up to (but not including) 1.133.0 on Google Cloud Platform allows an unauthenticated remote attacker to achieve cross-tenant remote code execution, model theft, and poisoning via pre-creating predictably named Cloud Storage buckets (Bucket Squatting). This vulnerability was patched and no customer action is needed.