CVE-2025-27496: Snowflake jdbc Snowflake JDBC Driver Client-side Encryption Vulnerability

LOW
Advisory Identifier: GHSA-q298-375f-5q63
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CVSS 3.3
CWE-532
Published
Advisory Summary

CVE-2025-27496 is a LOW (CVSS 3.3) snowflake jdbc driver client-side encryption vulnerability (CWE-532: Insertion of Sensitive Information into Log File) affecting Snowflake jdbc libraries in the Maven ecosystem. The issue involves snowflake jdbc driver client-side encryption key in debug logs. Remediation is available by upgrading affected packages to version 3.23.1.

CVE-2025-27496 at a Glance

CVE Identifier CVE-2025-27496
GHSA Identifier GHSA-q298-375f-5q63
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-532: Insertion of Sensitive Information into Log File
Affected Product Snowflake jdbc
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2025-27496

To remediate this vulnerability, upgrade all affected Snowflake jdbc dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

net.snowflake:snowflake-jdbc fixed: 3.23.1 
<dependency>
    <groupId>net.snowflake</groupId>
    <artifactId>snowflake-jdbc</artifactId>
    <version>3.23.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=net.snowflake

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2025-27496, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=net.snowflake

Analyze the terminal output to locate any version of Snowflake jdbc in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.23.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=net.snowflake command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-532: Insertion of Sensitive Information into Log File, where the product writes sensitive information to a log file. In Snowflake jdbc, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Issue Snowflake discovered and remediated a vulnerability in the Snowflake JDBC driver (“Driver”). When the logging level was set to DEBUG, the Driver 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 vulnerability affects Driver versions 3.0.13 through 3.23.0. Snowflake fixed the issue in version 3.23.1. ### Vulnerability Details When the logging level was set to DEBUG, the Driver would locally log the client-side encryption master key of the target stage during the execution of GET/PUT commands. The key was logged in a JSON object under the queryStageMasterKey key. The key by itself does not grant access to any sensitive data. ### Solution Snowflake released version 3.23.1 of the Snowflake JDBC driver, which fixes this issue. We highly recommend users upgrade to version 3.23.1. ### Additional Information If you discover a security vulnerability in one of our products or websites, please report the issue to Snowflake through our Vulnerability Disclosure Program hosted at HackerOne. For more information, please see our [Vulnerability Disclosure Policy](https://hackerone.com/snowflake?type=team).

CVE-2025-27496 Affected Snowflake jdbc Versions

1 component(s)
Fixed Versions:
3.23.1
Product / Package Ecosystem Affected Versions Fixed Version
net.snowflake:snowflake-jdbc
maven/net.snowflake/snowflake-jdbc
Maven
≥ 3.0.13
< 3.23.1
3.23.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/snowflakedb/snowflake-jdbc/security/advisories/GHSA-q298-375f-5q63
NVD — CVE-2025-27496 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27496
Security Fix Commit FIX COMMIT
https://github.com/snowflakedb/snowflake-jdbc/commit/ef81582ce2f1dbc3c8794a696c94f4fe65fad507
Snowflake jdbc Source Repository REPOSITORY
https://github.com/snowflakedb/snowflake-jdbc

Frequently Asked Questions

What is CVE-2025-27496?
CVE-2025-27496 is a security vulnerability in Snowflake jdbc involving Snowflake JDBC Driver client-side encryption key in DEBUG logs under CWE-532: Insertion of Sensitive Information into Log File.
Which Snowflake jdbc versions are affected?
Affected versions include releases prior to 3.23.1 across affected packages: net.snowflake:snowflake-jdbc.
What version fixes CVE-2025-27496?
Upgrading to 3.23.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is snowflake-jdbc affected?
Yes, net.snowflake:snowflake-jdbc is affected in releases prior to 3.23.1. Upgrade your dependency to 3.23.1 or later.
What is the CVSS score of CVE-2025-27496?
CVE-2025-27496 has a CVSS v3.1 base score of 3.3 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2025-27496?
CVE-2025-27496 is classified under CWE-532: Insertion of Sensitive Information into Log File (The product writes sensitive information to a log file.).
How can I check Maven dependencies for CVE-2025-27496?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=net.snowflake'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q298-375f-5q63",
  "modified" : "2025-03-13T21:39:12Z",
  "published" : "2025-03-13T18:57:46Z",
  "aliases" : [ "CVE-2025-27496" ],
  "summary" : "Snowflake JDBC Driver client-side encryption key in DEBUG logs",
  "details" : "### Issue\nSnowflake discovered and remediated a vulnerability in the Snowflake JDBC driver (“Driver”). When the logging level was set to DEBUG, the Driver 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.\n\nThis vulnerability affects Driver versions 3.0.13 through 3.23.0. Snowflake fixed the issue in version 3.23.1.\n\n### Vulnerability Details\nWhen the logging level was set to DEBUG, the Driver would locally log the client-side encryption master key of the target stage during the execution of GET/PUT commands. The key was logged in a JSON object under the queryStageMasterKey key. The key by itself does not grant access to any sensitive data.\n\n### Solution\nSnowflake released version 3.23.1 of the Snowflake JDBC driver, which fixes this issue. We highly recommend users upgrade to version 3.23.1.\n\n### Additional Information\nIf you discover a security vulnerability in one of our products or websites, please report the issue to Snowflake through our Vulnerability Disclosure Program hosted at HackerOne. For more information, please see our [Vulnerability Disclosure Policy](https://hackerone.com/snowflake?type=team).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "net.snowflake:snowflake-jdbc"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.13"
      }, {
        "fixed" : "3.23.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.23.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/snowflakedb/snowflake-jdbc/security/advisories/GHSA-q298-375f-5q63"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-27496"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/snowflakedb/snowflake-jdbc/commit/ef81582ce2f1dbc3c8794a696c94f4fe65fad507"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/snowflakedb/snowflake-jdbc"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-532" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-13T18:57:46Z",
    "nvd_published_at" : "2025-03-13T19:15:52Z"
  }
}