Description
A vulnerability in Google Cloud Vertex AI Workbench from 7/21/2025 to 01/30/2026 allows an attacker to exfiltrate valid Google Cloud access tokens of other users via abuse of a built-in startup script.
All instances after January 30th, 2026 have been patched to protect from this vulnerability. No user action is required for this.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Google Cloud | Vertex AI Workbench | 7/21/2025 – < 01/30/2026 | 01/30/2026 |
Advisories 1
- WID-SEC-2026-0541 Google Cloud Platform (Vertex AI Workbench): Schwachstelle ermöglicht Erlangen von Benutzerrechten BSI CERT-Bund (WID) · Feb 26, 2026