TI-2025-29067 Aliases CVE-2025-46326 GHSA-c82r-c9f7-f5mj

Snowflake Connector for .NET has race condition when checking access to Easy Logging configuration file

LOW 30CWE-367Published 2025-04-28 · Updated 2025-04-29

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00165 5th percentileScored 2026-11-07

Fix Fixed snowflake-connector-net (snowflakedb): 4.4.1Snowflake.Data (NuGet): 4.4.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Snowflake	snowflake-connector-net	2.1.2 to before 4.4.1	4.4.1	Patch available	CNA
—	Snowflake.Data (NuGet)	2.1.2 to before 4.4.1	4.4.1	Patch available	GHSA-c82r-c9f7-f5mj

snowflake-connector-net VendorSnowflake Affected 2.1.2 to before 4.4.1 Fixed in 4.4.1 Patch available CNA
Snowflake.Data (NuGet) Vendor— Affected 2.1.2 to before 4.4.1 Fixed in 4.4.1 Patch available GHSA-c82r-c9f7-f5mj

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:snowflake:snowflake_connector::::::.net::*	2.1.2 to before 4.4.1	Vulnerable	Snowflake

cpe:2.3:a:snowflake:snowflake_connector:*:*:*:*:*:.net:*:* Versions 2.1.2 to before 4.4.1 Vulnerable ·Snowflake

Remediation

Fix · CNA snowflake-connector-net (snowflakedb) Fixed in 4.4.1
Fix · GHSA-c82r-c9f7-f5mj Snowflake.Data (NuGet) Fixed in 4.4.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-46326
2026-10-03 Alias added: GHSA-c82r-c9f7-f5mj

References

Patch 1

https://github.com/snowflakedb/snowflake-connector-net/commit/393aad3cfa81045a05dd488944db45256e861bff

Advisory 2

Other 2

TI-2022-20945 Exponential ReDoS in snowflake-connector-python leads to denial of service CVSS 3.1HIGH 7.5
TI-2023-17069 Snowflake Python Connector vulnerable to Command Injection CVSS 3.1HIGH 8.8
TI-2023-17068 Snowflake NodeJS Driver vulnerable to Command Injection CVSS 3.1HIGH 8.8
TI-2023-17066 Snowflake Connector vulnerable to Command Injection CVSS 3.1HIGH 8.8
TI-2025-18511 The Snowflake Connector for Python uses insecure deserialization of the OCSP response cache CVSS 3.1HIGH 7.8
TI-2025-18510 Snowflake Connector for Python has an SQL Injection in write_pandas CVSS 3.1HIGH 7.0

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences