High severity · published Feb 20, 2026
CVE-2026-2473
Bucket Squatting in Vertex AI Experiments leads to RCE and Model Theft.
7.7
CVSS
0.5%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VA
Vertex AI Experiments · Google Cloud
1.21.0 before 1.133.0 · source: vendor