CVE-2026-23529— Arbitrary File Read in Google BigQuery Sink connector
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I. Basic Information for CVE-2026-23529
Vulnerability Information
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Vulnerability Title
Arbitrary File Read in Google BigQuery Sink connector
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
文件名或路径的外部可控制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Kafka Connect BigQuery Connector 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kafka Connect BigQuery Connector是Aiven Open开源的一个高性能数据同步中间件。 Kafka Connect BigQuery Connector 2.11.0之前版本存在代码问题漏洞，该漏洞源于服务在将外部来源的凭据配置传递给身份验证库之前未对其进行验证，可能导致任意文件读取或服务端请求伪造攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Aiven-Open | bigquery-connector-for-apache-kafka | < 2.11.0 | - |
II. Public POCs for CVE-2026-23529
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://docs.cloud.google.com/support/bulletins#gcp-2025-005x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-23529
IV. Related Vulnerabilities
Same vendor: Aiven-Open
Same weakness: CWE-73
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