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

Quick assessment

Affected
Snowflake Snowflake JDBC Driver
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Snowflake JDBC Driver是美国Snowflake公司的一款提供数据库连接功能的JDBC驱动程序。 Snowflake JDBC Driver 4.2.0版本至4.3.3版本存在安全漏洞，该漏洞源于对自动配置账户标识符的输入验证不当，可能导致携带凭据的登录请求被重定向至攻击者选择的HTTPS端点，攻击者利用可控账户值传输可重用登录凭据并重放，从而获取该凭据的权限。

CVSS 5.3 · Medium EPSS 0.29% · P20

Affected Version Matrix 3

VendorProduct Version RangeStatus
Snowflake Snowflake JDBC Driver 4.2.0< 4.3.4 affected
Snowflake Snowflake JDBC Driver (FIPS) 4.2.0< 4.3.4 affected
Snowflake Snowflake JDBC Driver (Thin) 4.2.0< 4.3.4 affected
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I. Basic Information for CVE-2026-85528

Vulnerability Information
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Vulnerability Title
Snowflake JDBC Driver auto-configuration account validation permits credential redirection
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Snowflake JDBC Driver 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Snowflake JDBC Driver是美国Snowflake公司的一款提供数据库连接功能的JDBC驱动程序。 Snowflake JDBC Driver 4.2.0版本至4.3.3版本存在安全漏洞，该漏洞源于对自动配置账户标识符的输入验证不当，可能导致携带凭据的登录请求被重定向至攻击者选择的HTTPS端点，攻击者利用可控账户值传输可重用登录凭据并重放，从而获取该凭据的权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Snowflake Snowflake JDBC Driver 4.2.0 ~ 4.3.4 -
Snowflake Snowflake JDBC Driver (FIPS) 4.2.0 ~ 4.3.4 -
Snowflake Snowflake JDBC Driver (Thin) 4.2.0 ~ 4.3.4 -

II. Public POCs for CVE-2026-85528

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III. Intelligence Information for CVE-2026-85528

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Vendor Pages for CVE-2026-85528 (1)

IV. Related Vulnerabilities

Same vendor: Snowflake
Same weakness: CWE-20

V. Comments for CVE-2026-85528

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