CVE WatchSep 4, 2026

CVE-2026-85528

Improper input validation of the auto-configuration account identifier in Snowflake JDBC Driver versions 4.2.0 through 4.3.3 allowed a crede

CVSS

5.3

Medium

EPSS

0.2%

KEV

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Exploit Today

0-100

Published: Sep 4, 2026 · Last modified: Sep 4, 2026 · CWE-20 · CWE-918

EPSS · 30d

Not enough EPSS history yet.

Technical 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. The fix is available in Snowflake JDBC Driver version 4.3.4. Users must manually upgrade.

Official references

docs.snowflake.comhttps://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-434-sep-03-2026

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