CVE-2026-23529

Kafka Connect BigQuery Connector is an implementation of a sink connector from Apache Kafka to Google BigQuery. Prior to 2.11.0, there is an arbitrary file read in Google BigQuery Sink connector. Aiven's Google BigQuery Kafka Connect Sink connector requires Google Cloud credential configurations for authentication to BigQuery services. During connector configuration, users can supply credential JSON files that are processed by Google authentication libraries. The service fails to validate externally-sourced credential configurations before passing them to the authentication libraries. An attacker can exploit this by providing a malicious credential configuration containing crafted credential_source.file paths or credential_source.url endpoints, resulting in arbitrary file reads or SSRF attacks.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://docs.cloud.google.com/support/bulletins#gcp-2025-005
https://github.com/Aiven-Open/bigquery-connector-for-apache-kafka/commit/20ea3921c6fe72d605a033c1943b20f49eaba981
https://github.com/Aiven-Open/bigquery-connector-for-apache-kafka/releases/tag/v2.11.0
https://github.com/Aiven-Open/bigquery-connector-for-apache-kafka/security/advisories/GHSA-3mg8-2g53-5gj4

Configurations

No configuration.

History

16 Jan 2026, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-16 17:15

Updated : 2026-01-26 15:05

NVD link : CVE-2026-23529

Mitre link : CVE-2026-23529

CVE.ORG link : CVE-2026-23529

JSON object : View

Products Affected

No product.

CWE

CWE-73

External Control of File Name or Path

CWE-918

Server-Side Request Forgery (SSRF)

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