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CVE-2026-2473

Bucket Squatting in Vertex AI Experiments leads to RCE and Model Theft.

HIGH
7.7
CVSS Score
Published: February 20, 2026 at 07:39 PM UTC
Updated: June 17, 2026 at 10:31 AM UTC
1 product affected across 1 vendorVertex AI

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Severity
HIGH7.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vertex AI· Google Cloud
60%
1.21.0 ≤ v < 1.133.01.21.0
Affected range stops below 1.133.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHGoogleCloud
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-340

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