Snowflake Connector for Python improperly verifies TLS hostnames
Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this by intercepting or redirecting network traffic and presenting a certificate signed by any trusted CA for any domain, causing the connector to accept connections without validating that the certificate matched the requested hostname. Successful exploitation requires an on-path traffic interception capability (e.g. ARP/DNS poisoning, rogue access point, BGP hijacking, or malicious proxy/exit node). This vulnerability may have exposed credentials, query data, and staged file contents to interception and tampering, and may have enabled the attacker to issue arbitrary SQL within the context of the victim's connector session. Impact is limited by the privileges of the affected Snowflake role. The fix is available in Snowflake Connector for Python versions 4.7.1 and 3.18.1. Users must manually upgrade.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | snowflake-connector-python | < 3.18.1, >= 4.0.0, < 4.7.1 | 3.18.1, 4.7.1 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2026-15925
- https://github.com/snowflakedb/snowflake-connector-python/commit/8969d6dc027092ee868965db022478b6c0fa40a1
- https://github.com/snowflakedb/snowflake-connector-python
- https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v3.18.1
- https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.7.1
- https://pypi.org/project/snowflake-connector-python
- https://github.com/advisories/GHSA-5cc2-282f-jjq2
- Vector CVSS
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N- Debilidad (CWE)
CWE-297- Plataforma
- Python (PyPI)
- Paquete
snowflake-connector-python- Publicada
- 16.07.2026
- Actualizado
- 11.10.2026 15:18
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2026-3920 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-5cc2-282f-jjq2 - CC BY 4.0
Historial de vulnerabilidades: snowflake-connector-python
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 8
- Primera → última
- 11.2022 10.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 1
- Alta 2
- Media 5
Divulgaciones por año
- 2022: 1
- 2023: 1
- 2024: 1
- 2025: 3
- 2026: 2
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Snowflake Connector for Python improperly verifies TLS hostnames esta entrada
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