---
id: CVE-2026-19594
title: >-
  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 s…
summary: >-
  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 s…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-22
  - CWE-141
published: '2026-08-12'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:12:59.557'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19594'
references:
  - url: 'https://pypi.org/project/snowflake.core/1.13.0/'
    label: 412d305a-227d-44f9-a262-a31ba44f2aea
tags:
  - nvd
epss: 0.00496
epssPercentile: 0.39982
ingestedAt: '2026-09-08T20:10:03.156Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.