CVE-2025-46326: snowflake-connector-net is the Snowflake Connector for .NET

Routine

LOW 3.3UPGRADE

CVE-2025-46326 is a low-severity flaw (CVSS 3.3) affecting snowflake connector. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

snowflake-connector-net is the Snowflake Connector for .NET. Versions starting from 2.1.2 to before 4.4.1, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition. When using the Easy Logging feature on Linux and macOS, the Connector reads logging configuration from a user-provided file. On Linux and macOS, the Connector verifies that the configuration file can be written to only by its owner. That check was vulnerable to a TOCTO

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.3 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-367
Published	2025-04-28
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: snowflake

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-28 23:15 UTCPublished CVE record published
2026-06-17 09:26 UTCUpdated Record last modified

snowflake snowflake connector UPGRADE

Affected: >= 2.1.2 and < 4.4.1

Fixed in: 4.4.1

Safe to downgrade to: a release before 2.1.2

1. Check installed version

apt-cache policy snowflake-connector || rpm -q snowflake-connector || snowflake-connector --version

2. UPGRADE to 4.4.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade snowflake-connector

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade snowflake-connector

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.1.2 (Debian / Ubuntu)

apt-cache madison snowflake-connector sudo apt install snowflake-connector=<VERSION_BEFORE_2.1.2> sudo apt-mark hold snowflake-connector

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list snowflake-connector sudo dnf downgrade snowflake-connector-<VERSION_BEFORE_2.1.2> sudo dnf versionlock add snowflake-connector

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-46326?

snowflake connector: upgrade to 4.4.1. Exact commands for each OS are on this page.

Is CVE-2025-46326 being exploited?

CVE-2025-46326 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-46326 affect?

CVE-2025-46326 affects snowflake connector. Severity is low (CVSS 3.3). snowflake-connector-net is the Snowflake Connector for .NET. Versions starting from 2.1.2 to before 4.4.1, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition. When using the Easy Logging feature on Linux and macOS, the

How urgent is CVE-2025-46326?

Priority 13/100. No elevated risk signals yet.

Software pages

macOS vulnerabilities

Related CVEs

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References

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