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CVE-2026-19594— Path Traversal and HTTP Parameter Pollution in Snowflake Python API (snowflake.core) Allow Confused-Deputy Privilege Escalation

Quick assessment

Affected
Snowflake Snowflake Python APIs
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 Python APIs是美国Snowflake公司的一个提供数据操作能力的Python接口。 Snowflake Python APIs 1.13.0之前版本存在安全漏洞，该漏洞源于输入清理不足，存在路径遍历和HTTP参数污染问题，可能导致混淆代理权限提升，攻击者通过控制标识符或对象名，在应用程序特权会话下访问父资源或覆盖swap、clone、rename操作限制。

CVSS 8.1 · High EPSS 0.50% · P42

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Snowflake Snowflake Python APIs < 1.13.0 affected
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I. Basic Information for CVE-2026-19594

Vulnerability Information
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Vulnerability Title
Path Traversal and HTTP Parameter Pollution in Snowflake Python API (snowflake.core) Allow Confused-Deputy Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient input sanitization in Snowflake Python API (`snowflake.core`) versions prior to 1.13.0 allowed confused-deputy privilege escalation through two related weaknesses: path traversal (CWE-22) via unencoded `..` identifier path segments, and HTTP parameter pollution (CWE-141) via unencoded `&`/`#`/`=` characters in query string values. An attacker with access to a downstream application built on snowflake.core could exploit the path traversal by supplying `..` as an object name, causing `snowflake.core` to issue REST requests against a parent resource or exploit the parameter pollution by injecting `&`/`#`/`=` into a free-form name field to override constraints on swap, clone, or rename operations — all executed under the application's privileged session. Successful exploitation requires the attacker to control an identifier or object-name string in an application built on snowflake.core that passes it to `snowflake.core` under a higher-privileged Snowflake session (e.g., an EXECUTE AS OWNER stored procedure, Streamlit app, or Native App). The fix is available in Snowflake Python API version 1.13.0, which also addresses several additional security findings. Users must manually upgrade.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Snowflake Python APIs 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Snowflake Python APIs是美国Snowflake公司的一个提供数据操作能力的Python接口。 Snowflake Python APIs 1.13.0之前版本存在安全漏洞，该漏洞源于输入清理不足，存在路径遍历和HTTP参数污染问题，可能导致混淆代理权限提升，攻击者通过控制标识符或对象名，在应用程序特权会话下访问父资源或覆盖swap、clone、rename操作限制。
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 Python APIs 0 ~ 1.13.0 -

II. Public POCs for CVE-2026-19594

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III. Intelligence Information for CVE-2026-19594

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IV. Related Vulnerabilities

Same vendor: Snowflake
Same weakness: CWE-22

V. Comments for CVE-2026-19594

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