When identifier escaping is disabled through a non-default configuration, the write_pandas() data-loading functionality in the Snowflake Connector for Python and the Snowflake Connector for Python (Universal Core) did not escape DataFrame column names before including them in generated SQL, which could allow SQL injection. In both products, a crafted column name could have been used to chain additional SQL statements onto the generated statement, potentially allowing an attacker to read, modify, or delete other data accessible to the application's Snowflake role. Exploitation required an application to pass attacker controlled column names into this functionality. The fix is available in Snowflake Connector for Python version 4.8.1 and Snowflake Connector for Python (Universal Core) version 5.2.0. Users must upgrade manually.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00374.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Snowflake Snowflake Connector for Python unaffected
Version Status Constraints
2.3.4 affected < 4.8.1
Snowflake Snowflake Connector for Python (Universal Core) unaffected
Version Status Constraints
5.0.0b1 affected < 5.2.0

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://docs.snowflake.com/en/release-notes/clients-drivers/python-connector-2026#version-481-oct-26-2026 cve-icon cve-icon
https://docs.snowflake.com/en/release-notes/clients-drivers/python-connector-2026#version-520-nov-4-2026 cve-icon cve-icon
History

Sat, 07 Nov 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 06 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Description When identifier escaping is disabled through a non-default configuration, the write_pandas() data-loading functionality in the Snowflake Connector for Python and the Snowflake Connector for Python (Universal Core) did not escape DataFrame column names before including them in generated SQL, which could allow SQL injection. In both products, a crafted column name could have been used to chain additional SQL statements onto the generated statement, potentially allowing an attacker to read, modify, or delete other data accessible to the application's Snowflake role. Exploitation required an application to pass attacker controlled column names into this functionality. The fix is available in Snowflake Connector for Python version 4.8.1 and Snowflake Connector for Python (Universal Core) version 5.2.0. Users must upgrade manually.
Title SQL Injection via unescaped DataFrame column names in Snowflake Connector for Python and Snowflake Connector for Python (Universal Core)
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: SNOWFLAKE

Published:

Updated: 2026-11-06T16:45:01.480Z

Reserved: 2026-11-06T16:06:29.814Z

Link: CVE-2026-123859

cve-icon Vulnrichment

Updated: 2026-11-06T16:44:53.414Z

cve-icon NVD

Status : Deferred

Published: 2026-11-06T17:17:25.323

Modified: 2026-11-06T21:15:29.947

Link: CVE-2026-123859

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T18:00:10Z

Weaknesses