CVE-2025-46329

Snowflake Connector for C/C++ inserts client-side encryption key in DEBUG logs

LOW
3.3
CVSS Score
Published: April 29, 2025 at 04:35 AM UTC
Updated: June 17, 2026 at 09:26 AM UTC
2 products affected across 2 vendorsConnector for C/c++Connector for C C

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Severity
LOW3.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.5.0 ≤ v < 2.2.0
Affected range stops below 2.2.0, so it looks safe — our inference, not a vendor statement
v < 2.2.0
Affected range stops below 2.2.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-532

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