CVE-2025-24794: Snowflake connector python Snowflake-connector-python Vulnerable To Insecure Deserialization Vulnerability

MODERATE
Advisory Identifier: GHSA-m4f6-vcj4-w5mx
CVSS 6.7
CWE-502
Published
Advisory Summary

CVE-2025-24794 is a MODERATE (CVSS 6.7) snowflake-connector-python vulnerable to insecure deserialization vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Snowflake connector python libraries in the PyPI ecosystem. The issue involves snowflake-connector-python vulnerable to insecure deserialization of the ocsp response cache. Remediation is available by upgrading affected packages to version 3.13.1.

CVE-2025-24794 at a Glance

CVE Identifier CVE-2025-24794
GHSA Identifier GHSA-m4f6-vcj4-w5mx
Severity MODERATE
CVSS v3.1 Base Score 6.7
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Snowflake connector python
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.7

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

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

How to Fix CVE-2025-24794

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

snowflake-connector-python fixed: 3.13.1
pip install snowflake-connector-python>=3.13.1
Verify Direct and Transitive Dependencies

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

pip show snowflake-connector-python

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-24794, inspect your installed packages using pip:

pip show snowflake-connector-python

Analyze the terminal output to locate any version of Snowflake connector python in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.13.1), your application is affected.

Note: The pip show snowflake-connector-python command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Snowflake connector python, 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 Connector for Python. The OCSP response cache uses pickle as the serialization format, potentially leading to local privilege escalation. This vulnerability affects versions 2.7.12 through 3.13.0. Snowflake fixed the issue in version 3.13.1. ### Vulnerability Details The OCSP response cache is saved locally on the machine running the Connector using the pickle serialization format. This can potentially lead to local privilege escalation if an attacker has write access to the OCSP response cache file. ### Solution Snowflake released version 3.13.1 of the Snowflake Connector for Python, which fixes this issue. We recommend users upgrade to version 3.13.1. ### Additional Information If you discover a security vulnerability in one of our products or websites, please report the issue to HackerOne. For more information, please see our [Vulnerability Disclosure Policy](https://hackerone.com/snowflake?type=team).

CVE-2025-24794 Affected Snowflake connector python Versions

1 component(s)
Fixed Versions:
3.13.1
Product / Package Ecosystem Affected Versions Fixed Version
snowflake-connector-python
PyPI
≥ 2.7.12
< 3.13.1
3.13.1

References

Frequently Asked Questions

What is CVE-2025-24794?
CVE-2025-24794 is a security vulnerability in Snowflake connector python involving snowflake-connector-python vulnerable to insecure deserialization of the OCSP response cache under CWE-502: Deserialization of Untrusted Data.
Which Snowflake connector python versions are affected?
Affected versions include releases prior to 3.13.1 across affected packages: snowflake-connector-python.
What version fixes CVE-2025-24794?
Upgrading to 3.13.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is snowflake-connector-python affected?
Yes, snowflake-connector-python is affected in releases prior to 3.13.1. Upgrade your dependency to 3.13.1 or later.
What is the CVSS score of CVE-2025-24794?
CVE-2025-24794 has a CVSS v3.1 base score of 6.7 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2025-24794?
CVE-2025-24794 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check PyPI dependencies for CVE-2025-24794?
Run the dependency tree command: 'pip show snowflake-connector-python'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-m4f6-vcj4-w5mx",
  "modified" : "2025-04-09T20:10:43Z",
  "published" : "2025-01-29T20:50:18Z",
  "aliases" : [ "CVE-2025-24794" ],
  "summary" : "snowflake-connector-python vulnerable to insecure deserialization of the OCSP response cache",
  "details" : "### Issue\nSnowflake discovered and remediated a vulnerability in the Snowflake Connector for Python. The OCSP response cache uses pickle as the serialization format, potentially leading to local privilege escalation.\n\nThis vulnerability affects versions 2.7.12 through 3.13.0. Snowflake fixed the issue in version 3.13.1.\n\n### Vulnerability Details\nThe OCSP response cache is saved locally on the machine running the Connector using the pickle serialization format. This can potentially lead to local privilege escalation if an attacker has write access to the OCSP response cache file.\n\n### Solution\nSnowflake released version 3.13.1 of the Snowflake Connector for Python, which fixes this issue. We recommend users upgrade to version 3.13.1.\n\n### Additional Information\nIf you discover a security vulnerability in one of our products or websites, please report the issue to 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:H/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "snowflake-connector-python"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7.12"
      }, {
        "fixed" : "3.13.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.13.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/snowflakedb/snowflake-connector-python/security/advisories/GHSA-m4f6-vcj4-w5mx"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-24794"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/snowflakedb/snowflake-connector-python/commit/3769b43822357c3874c40f5e74068458c2dc79af"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/snowflake-connector-python/PYSEC-2025-27.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/snowflakedb/snowflake-connector-python"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v3.13.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-01-29T20:50:18Z",
    "nvd_published_at" : "2025-01-29T21:15:21Z"
  }
}