CVE ID
CVE-2026-85528
CVE ID Summary
Improper validation of the auto-configuration account identifier let a credential-bearing login request be redirected to an attacker-selected HTTPS endpoint and replayed.
CWE ID
CWE-20: Improper Input Validation
CWE-918: Server-Side Request Forgery
Affected Versions
4.2.0 < 4.3.4
Patched Versions
4.3.4 (including snowflake-jdbc-fips and snowflake-jdbc-thin)
Description
Improper input validation of the auto-configuration account identifier in Snowflake JDBC Driver versions 4.2.0 through 4.3.3 allowed a credential-bearing login request to be redirected to an attacker-selected HTTPS endpoint. An attacker able to control the account value could cause the driver to transmit a reusable login credential to a host of their choosing and replay it to obtain the privileges granted to that credential. Successful exploitation requires an application using jdbc:snowflake:auto with a connections.toml section that omits an explicit host and a lower-trust principal able to set the account value; ordinary JDBC URLs are unaffected. Snowflake fixed the issue in version 4.3.4, including the snowflake-jdbc-fips and snowflake-jdbc-thin.
Resolution
Upgrade to Snowflake JDBC Driver version 4.3.4 or later. Users must manually upgrade.
