CVE-2026-2244 PUBLISHED

Sensitive Data Exposure in Google Cloud Vertex AI Workbench

Assigner: GoogleCloud
Reserved: 09.02.2026 Published: 26.02.2026 Updated: 26.02.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/U:Clear
CVSS Score: 8.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	None	Integrity	High
Attack Requirements	None	Availability	None	Availability	High
Privileges Required	Low
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Google Cloud
Product	Vertex AI Workbench
Versions	Default: unaffected affected from 7/21/2025 to 01/30/2026 (excl.)

Credits

Moshe Bernstein with Tenable reporter

References

https://docs.cloud.google.com/vertex-ai/docs/workbench/release-notes#February_20_2026

Problem Types

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor CWE

Impacts

CAPEC-664 Server Side Request Forgery