The Snowflake Connector for Python stores sensitive data in logs
Issue
Snowflake recently learned about and remediated a set of vulnerabilities in the Snowflake Connector for Python. Under specific conditions, certain users credentials (or portions of those credentials) were logged locally by the Connector to the users own systems. The credentials were not logged by Snowflake.
These vulnerabilities affect versions up to and including 3.12.2. Snowflake fixed the issue in version 3.12.3.
Vulnerability Details
When the logging level was set by the user to DEBUG, the Connector could have logged Duo passcodes (when specified via the “passcode” parameter) and Azure SAS tokens. Additionally, the SecretDetector logging formatter, if enabled, contained bugs which caused it to not fully redact JWT tokens and certain private key formats.
Solution
Snowflake released version 3.12.3 of the Snowflake Connector for Python, which fixes these issues. We recommend users upgrade to version 3.12.3 and review their logs for any potentially sensitive information that may have been captured.
Additional Information
If you discover a security vulnerability in one of our products or websites, please report the issue to HackerOne. For more information, please see our Vulnerability Disclosure Policy.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | snowflake-connector-python | < 3.12.3 | 3.12.3 |
References
- https://github.com/snowflakedb/snowflake-connector-python/security/advisories/GHSA-5vvg-pvhp-hv2m
- https://github.com/snowflakedb/snowflake-connector-python/commit/dbc9284a3c0382c131b971b35e8d6ab93c46f37a
- https://nvd.nist.gov/vuln/detail/CVE-2024-49750
- https://github.com/pypa/advisory-database/tree/main/vulns/snowflake-connector-python/PYSEC-2024-191.yaml
- https://github.com/snowflakedb/snowflake-connector-python
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-532- Platform
- Python (PyPI)
- Package
snowflake-connector-python- Disclosed
- 24.10.2024
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2024-191 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-5vvg-pvhp-hv2m - CC BY 4.0
Vulnerability history: snowflake-connector-python
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 11.2022 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 5
Disclosures per year
- 2022: 1
- 2023: 1
- 2024: 1
- 2025: 3
- 2026: 2
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