CVE-2026-86597: Sensitive information written to logs by Snowflake drivers
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. The fix is available 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. Users must manually upgrade and should securely delete previously generated diagnostic logs containing sensitive information where retention is not required.
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N · CWE-532
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Snowflake: Snowflake Connector for PythonSnowflake: Snowflake Go DriverSnowflake: Snowflake JDBC DriverSnowflake: Snowflake JDBC Driver (FIPS)Snowflake: Snowflake JDBC Driver (Thin)Snowflake: Snowflake Node.js DriverSnowflake: Snowflake ODBC DriverSnowflake: Snowflake PHP PDO Driver
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- docs.snowflake.com/en/release-notes/clients-drivers/golang-2026 (opens in new tab)
- docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026 (opens in new tab)
- docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026 (opens in new tab)
- docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026 (opens in new tab)
- docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026 (opens in new tab)
- github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.7.3 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)