CVE-2026-12717Network attack vector

Authenticated code execution via JDBC parameter injection

Published Aug 26, 2026 · Updated Aug 26, 2026

Improper input validation in Google BigQuery Data Transfer Service before 2026-05-01 allows remote authenticated users to execute code. The CData JDBC integration processes crafted connection-string parameters without neutralizing elements that alter downstream interpretation. Authenticated access to supply those parameters grants code execution in the connector container and privilege escalation in the tenant project.

CVSS severity9.4
Critical
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Google BigQuery Data Transfer Service before 2026-05-01 allows remote authenticated users to execute code. The CData JDBC integration processes crafted connection-string parameters without neutralizing elements that alter downstream interpretation. Authenticated access to supply those parameters grants code execution in the connector container and privilege escalation in the tenant project.

The record

CVE
CVE-2026-12717
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
Google Cloud
Product
BigQuery Data Transfer Service
Classifications
CWE-74, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026-05-01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Google Cloud · BigQuery Data Transfer Serviceversion=0 <2026-05-01

Published CVSS scores

9.4Google CloudCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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