Cross-Tenant Remote Code Execution Vulnerability in Google Cloud Vertex AI
CVE-2026-2473

7.7HIGH

Key Information:

Vendor

Google Cloud

Status
Vertex Ai Experiments
Vendor
CVE Published:
20 February 2026

What is CVE-2026-2473?

A vulnerability in Google Cloud Vertex AI allows unauthenticated remote attackers to exploit predictable bucket naming in Cloud Storage. This can lead to cross-tenant remote code execution, allowing attackers to steal or poison machine learning models. The issue arises in versions 1.21.0 through 1.132.9, where attackers can pre-create Cloud Storage buckets with predictable names, facilitating unauthorized access to sensitive resources. The vulnerability has been addressed, and users are not required to take any action.

Affected Version(s)

Vertex AI Experiments 1.21.0 < 1.133.0

References

https://docs.cloud.google.com/support/bulletins#gcp-2026-012

CVSS V4

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Omer Amiad
.