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CVE-2025-46326— Snowflake Connector for .NET has race condition when checking access to Easy Logging configuration file

Quick assessment

Affected
snowflakedb snowflake-connector-net
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Snowflake Connector for .NET是Snowflake公司的一个 .NET 连接器。 Snowflake Connector for .NET 2.1.2至4.4.1之前版本存在安全漏洞，该漏洞源于TOCTOU竞争条件，可能导致日志配置被覆盖。

CVSS 3.3 · Low EPSS 0.17% · P5

Possible ATT&CK Techniques 1 AI

T1574.002
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I. Basic Information for CVE-2025-46326

Vulnerability Information
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Vulnerability Title
Snowflake Connector for .NET has race condition when checking access to Easy Logging configuration file
Source: CVE Program / CVE List V5
Vulnerability Description
snowflake-connector-net is the Snowflake Connector for .NET. Versions starting from 2.1.2 to before 4.4.1, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition. When using the Easy Logging feature on Linux and macOS, the Connector reads logging configuration from a user-provided file. On Linux and macOS, the Connector verifies that the configuration file can be written to only by its owner. That check was vulnerable to a TOCTOU race condition and failed to verify that the file owner matches the user running the Connector. This could allow a local attacker with write access to the configuration file or the directory containing it to overwrite the configuration and gain control over logging level and output location. This issue has been patched in version 4.4.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
Snowflake Connector for .NET 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Snowflake Connector for .NET是Snowflake公司的一个 .NET 连接器。 Snowflake Connector for .NET 2.1.2至4.4.1之前版本存在安全漏洞，该漏洞源于TOCTOU竞争条件，可能导致日志配置被覆盖。
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
snowflakedb snowflake-connector-net >= 2.1.2, < 4.4.1 -

II. Public POCs for CVE-2025-46326

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III. Intelligence Information for CVE-2025-46326

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Patches & Fixes for CVE-2025-46326 (1)

Vendor Advisories for CVE-2025-46326 (1)

Vendor Pages for CVE-2025-46326 (1)

Same Patch Batch · snowflakedb · 2025-04-28 · 3 CVEs total

CVE-2025-46327 3.3 LOW Go Snowflake Driver has race condition when checking access to Easy Logging configuration
CVE-2025-46328 3.3 LOW NodeJS Driver for Snowflake has race condition when checking access to Easy Logging config

IV. Related Vulnerabilities

Same product: snowflake-connector-net
Same vendor: snowflakedb
Same weakness: CWE-367

V. Comments for CVE-2025-46326

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