CVE ID
CVE-2026-86597
CVE ID Summary
Authentication tokens, query-result encryption keys, pre-signed cloud-storage URLs, and SAML assertions could be written to diagnostic logs where redaction did not cover all log paths and data types.
CWE ID
CWE-532: Insertion of Sensitive Information into Log File
Affected Versions
Snowflake Connector for Python < 4.7.3
Snowflake Go Driver < 2.2.0
Snowflake JDBC Driver < 4.3.4 (including snowflake-jdbc-fips and snowflake-jdbc-thin)
Snowflake Node.js Driver < 3.3.0
Snowflake PHP PDO Driver < 4.2.0
Snowflake ODBC Driver < 3.20.0
Patched Versions
Snowflake Connector for Python 4.7.3
Snowflake Go Driver 2.2.0
Snowflake JDBC Driver 4.3.4 (including snowflake-jdbc-fips and snowflake-jdbc-thin)
Snowflake Node.js Driver 3.3.0
Snowflake PHP PDO Driver 4.2.0
Snowflake ODBC Driver 3.20.0
Description
Insertion of sensitive information into log files in the Snowflake Python, Go, JDBC, Node.js, PHP PDO, and ODBC drivers allowed authentication tokens, query-result encryption keys, pre-signed cloud-storage URLs, and SAML assertions to be written to diagnostic logs in circumstances where the available log redaction did not cover all affected log paths and data types. An attacker with read access to the log destination, whether the local filesystem, a log aggregation service, or a CI/CD artifact store, could obtain credentials and decryption keys that, if still valid at the time of access, could be used to authenticate to the corresponding Snowflake account or cloud-storage object. Successful exploitation requires read access to the log destination, and impact is bounded by credential lifetime and object scope. Snowflake fixed the issue in Snowflake Connector for Python v4.7.3, Snowflake Go Driver v2.2.0, Snowflake JDBC Driver v4.3.4 (including the snowflake-jdbc-fips and snowflake-jdbc-thin), Snowflake Node.js Driver v3.3.0, Snowflake PHP PDO Driver v4.2.0, and Snowflake ODBC Driver v3.20.0.
Resolution
Upgrade to the patched driver versions listed above. Users must manually upgrade and should securely delete previously generated diagnostic logs containing sensitive information where retention is not required.
