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 the patched versions listed above. Users must manually upgrade.
History

Sat, 05 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 04 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Fri, 04 Sep 2026 08:30:00 +0000

Type Values Removed Values Added
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 the patched versions listed above. Users must manually upgrade.
Title Improper OCSP response validation in Snowflake drivers
Weaknesses CWE-295
CWE-347
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: SNOWFLAKE

Published: 2026-09-04T08:22:43.369Z

Updated: 2026-09-04T19:40:26.454Z

Reserved: 2026-09-04T08:19:50.886Z

Link: CVE-2026-85525

cve-icon Vulnrichment

Updated: 2026-09-04T19:40:16.596Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-04T09:17:11.610

Modified: 2026-09-08T19:12:59.557

Link: CVE-2026-85525

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-04T08:22:43Z

Links: CVE-2026-85525 - Bugzilla