CVE-2026-85525: Improper OCSP response validation in Snowflake drivers
Description
Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node.js drivers allowed a revoked TLS certificate to be accepted as valid, because OCSP responses were not reliably bound to the certificate being validated and definitive verification failures were treated as transient. A man-in-the-middle attacker holding a revoked certificate and its private key for a Snowflake or stage hostname could cause the driver to establish a TLS session to the attacker-controlled endpoint anyway, allowing the attacker to read and modify data transmitted within that connection. Successful exploitation requires that on-path position and the corresponding private key, and impact is limited to data carried within the intercepted connection. 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), and Snowflake Node.js Driver v3.3.0. Users must manually upgrade.
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N · CWE-295, CWE-347
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 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)
- 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)