Snowflake Connector .NET does not properly check the Certificate Revocation List (CRL)
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
The Snowflake .NET driver provides an interface to the Microsoft .NET open source software framework for developing applications. Snowflake recently received a report about a vulnerability in the Snowflake Connector .NET where the checks against the Certificate Revocation List (CRL) were not performed where the insecureMode flag was set to false, which is the default setting. The vulnerability affects versions between 2.0.25 and 2.1.4 (inclusive). Snowflake fixed the issue in version 2.1.5.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Snowflake | snowflake-connector-net | 2.0.25 – 2.1.4 | — | No fix listed | CNA |
| — | Snowflake.Data (NuGet) | 2.0.25 to before 2.1.5 | 2.1.5 | Patch available | GHSA-hwcc-4cv8-cf3h |
- snowflake-connector-net VendorSnowflake Affected 2.0.25 – 2.1.4 Fixed in — No fix listed CNA
- Snowflake.Data (NuGet) Vendor— Affected 2.0.25 to before 2.1.5 Fixed in 2.1.5 Patch available GHSA-hwcc-4cv8-cf3h
Remediation
- Fix · GHSA-hwcc-4cv8-cf3h Snowflake.Data (NuGet) Fixed in 2.1.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-51662
- 2026-10-03 Alias added: GHSA-hwcc-4cv8-cf3h
References
Advisory 2
More Snowflake Connector vulnerabilities
- 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
Sources
- CVE-2023-51662 · CVE Program
- CVE-2023-51662 · NVD
- FIRST EPSS
- GHSA-hwcc-4cv8-cf3h · GitHub Advisory Database · CC BY 4.0
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