# CVE-2026-85528: Snowflake JDBC Driver auto-configuration account validation permits credential redirection

> CVE-2026-85528: Snowflake JDBC Driver auto-configuration account validation permits credential redirection. CVSS 5.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-85528
Last updated: 2026-09-10T16:17:58Z

- Published: 2026-09-04 08:36 UTC · Updated: 2026-09-10 16:17 UTC · Assigner: SNOWFLAKE
- CVSS: 5.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS: 0.29%, 21th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-20, CWE-918

## 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, including the snowflake-jdbc-fips and snowflake-jdbc-thin. Users must manually upgrade.

## Affected vendors and products

- Snowflake: Snowflake JDBC Driver
- Snowflake: Snowflake JDBC Driver (FIPS)
- Snowflake: Snowflake JDBC Driver (Thin)

## Tracked companies

- [Snowflake](https://rewindex.com/company/snowflake.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-85528)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-85528)
- [https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026\#version-434-sep-03-2026](https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-434-sep-03-2026)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-85528 · Markdown: https://rewindex.com/cve/CVE-2026-85528.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-85528 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:47:12.803Z