CVE-2026-19594 Path traversal in Snowflake Python APIs
Attackers can escalate privileges and modify data via path traversal and parameter pollution in the Snowflake Python API library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19594?
CVE-2026-19594 is a high-severity path traversal vulnerability in Snowflake Python APIs, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-19594?
How do I fix CVE-2026-19594?
No fix has been published for CVE-2026-19594 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-19594 being exploited?
There is no known exploitation of CVE-2026-19594 in the wild and no public exploit code.
Sources
Also known as GHSA-qfpg-v669-8p3h.