CVE-2026-12717 PUBLISHED

Remote Code Execution in BigQuery Data Transfer Service via JDBC Connection String Injection

Assigner: GoogleCloud
Reserved: 19.06.2026 Published: 26.08.2026 Updated: 26.08.2026

An Improper Input Validation vulnerability in CData JDBC driver integration in Google Cloud BigQuery Data Transfer Service versions prior to 2026-05-01 on Google Cloud Platform allows an authenticated attacker to achieve remote code execution in the connector container and escalate privileges in the tenant project using crafted JDBC connection string parameters.

This vulnerability was patched on 1 May 2026, and no customer action is needed.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 9.4

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

CVSS 4.0

Product Status

Vendor	Google Cloud
Product	BigQuery Data Transfer Service
Versions	Default: unaffected affected from 0 to 2026-05-01 (excl.)

Credits

Tomas Lažauninkas reporter

References

https://docs.cloud.google.com/support/bulletins#gcp-2026-056

Problem Types

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE

Impacts

CAPEC-242 Code Injection