snowflake-connector-python vulnerable to insecure deserialization of the OCSP response cache
Issue
Snowflake discovered and remediated a vulnerability in the Snowflake Connector for Python. The OCSP response cache uses pickle as the serialization format, potentially leading to local privilege escalation.
This vulnerability affects versions 2.7.12 through 3.13.0. Snowflake fixed the issue in version 3.13.1.
Vulnerability Details
The OCSP response cache is saved locally on the machine running the Connector using the pickle serialization format. This can potentially lead to local privilege escalation if an attacker has write access to the OCSP response cache file.
Solution
Snowflake released version 3.13.1 of the Snowflake Connector for Python, which fixes this issue. We recommend users upgrade to version 3.13.1.
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
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | snowflake-connector-python | >= 2.7.12, < 3.13.1 | 3.13.1 |
References
- https://github.com/snowflakedb/snowflake-connector-python/security/advisories/GHSA-m4f6-vcj4-w5mx
- https://github.com/snowflakedb/snowflake-connector-python/commit/3769b43822357c3874c40f5e74068458c2dc79af
- https://nvd.nist.gov/vuln/detail/CVE-2025-24794
- https://github.com/pypa/advisory-database/tree/main/vulns/snowflake-connector-python/PYSEC-2025-27.yaml
- https://github.com/snowflakedb/snowflake-connector-python
- https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v3.13.1
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- Python (PyPI)
- Package
snowflake-connector-python- Disclosed
- 29.01.2025
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2025-27 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-m4f6-vcj4-w5mx - 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
-
snowflake-connector-python vulnerable to insecure deserialization of the OCSP response cache this entry
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