CVE-2026-15062: Snowflake Snowpark Python SDK

Critical severity, CVSS 9.6. EPSS: 0.4% chance of exploitation in the next 30 days.

SQL injection vulnerabilities in the Snowflake Snowpark Python SDK (snowpark-python) versions prior to 1.53.0 could allow authenticated low-privilege users to execute SQL beyond their authorization scope. An attacker could exploit these vulnerabilities by embedding SQL payloads in source database column names to escalate privileges via the DataFrameReader.dbapi() API by supplying a specially crafted location parameter to DataFrameWriter write methods to redirect a COPY INTO to an arbitrary source query, or by including a backslash-single-quote sequence in an export path to defeat the normalize_path() sanitizer and inject SQL via DataFrame.to_csv(). Successful exploitation may result in source database compromise, unauthorized cross-tenant data exfiltration, or unauthorized read of Snowflake account data.

Affected products

• Snowflake Snowpark Python SDK: from 0.1.0, before 1.53.0 (fixed in 1.53.0)

Published 2026-07-08. Last modified 2026-07-09.