CVE-2025-27496: Snowflake JDBC Driver client-side encryption key in DEBUG logs

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-13 · updated 2026-06-17
Weakness: CWE-532

Description

Snowflake, a platform for using artificial intelligence in the context of cloud computing, has a vulnerability in the Snowflake JDBC driver ("Driver") in versions 3.0.13 through 3.23.0 of the driver. When the logging level was set to DEBUG, the Driver would log locally the client-side encryption master key of the target stage during the execution of GET/PUT commands. This key by itself does not grant access to any sensitive data without additional access authorizations, and is not logged server-side by Snowflake. Snowflake fixed the issue in version 3.23.1.

Affected products

snowflakedb snowflake-jdbc: from 3.0.13 before 3.23.1 — fixed in 3.23.1

How to fix

Upgrade to a fixed version: snowflakedb snowflake-jdbc 3.23.1. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2025-27496 or the next vulnerability affects your stack