Cross-Tenant Repository Takeover via Improper Access Control in BigQuery, Dataform and Colab Enterprise
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.4%
exploitation probability
0.4%top 71% of all CVEs
observed exploitation
nono source reports it
A Missing Authorization vulnerability in the repository creation functionality in Google Cloud BigQuery, Dataform and Colab Enterprise, in the versions between October 2025 and May 10th, 2026, on Google Cloud Platform, allows an authenticated attacker to escalate privileges and perform cross-tenant repository takeover.
This vulnerability was patched on 10 May 2026, and no customer action is needed.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear