Bucket Squatting in Vertex AI Experiments leads to RCE and Model Theft.
Priority LOW 36CWE-340Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00512 43rd percentileScored 2026-11-07
Fix Fixed Vertex AI Experiments (Google Cloud): 1.133.0google-cloud-aiplatform (PyPI): 1.133.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Vertex AI Experiments | 1.21.0 to before 1.133.0 | 1.133.0 | Patch available | CNA | |
| — | google-cloud-aiplatform (PyPI) | 1.21.0 to before 1.133.0 | 1.133.0 | Patch available | GHSA-wh2j-26j7-9728 |
- Vertex AI Experiments VendorGoogle Affected 1.21.0 to before 1.133.0 Fixed in 1.133.0 Patch available CNA
- google-cloud-aiplatform (PyPI) Vendor— Affected 1.21.0 to before 1.133.0 Fixed in 1.133.0 Patch available GHSA-wh2j-26j7-9728
Remediation
- Fix · CNA Vertex AI Experiments (Google Cloud) Fixed in 1.133.0
- Fix · GHSA-wh2j-26j7-9728 google-cloud-aiplatform (PyPI) Fixed in 1.133.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2473
- 2026-10-03 Alias added: GHSA-wh2j-26j7-9728
References
More Google vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2026-2473 · CVE Program
- CVE-2026-2473 · NVD
- FIRST EPSS
- GHSA-wh2j-26j7-9728 · GitHub Advisory Database · CC BY 4.0
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