CVE-2026-85525Improper OCSP response validation in Snowflake drivers
Updated under an hour ago ()
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It affects Snowflake Connector for Python and 5 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-295, CWE-347
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- SNOWFLAKE
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Snowflake Snowflake Connector for Python snowflake:connector_for_python (from the name) | before 4.7.3 | CNA record |
Snowflake Snowflake Go Driver snowflake:go_driver (from the name) | through 1.19.1 | CNA record |
Snowflake Snowflake JDBC Driver snowflake:jdbc_driver (from the name) | before 4.3.4 | CNA record |
Snowflake Snowflake JDBC Driver (FIPS) snowflake:jdbc_driver_fips (from the name) | before 4.3.4 | CNA record |
Snowflake Snowflake JDBC Driver (Thin) snowflake:jdbc_driver_thin (from the name) | before 4.3.4 | CNA record |
Snowflake Snowflake Node.js Driver snowflake:node.js_driver (from the name) | before 3.3.0 | CNA record |
References
- https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.7.3
- https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026
- https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026
- https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.