Vulnerability-Lookup

GHSA-CRCX-4C4M-P23P

Vulnerability from github – Published: 2026-11-04 12:31 – Updated: 2026-11-04 12:31

Details

Multiple Snowflake client drivers implementing the authenticator=externalbrowser single sign-on flow could have allowed an attacker to interfere with a user's login attempt through weaknesses in the local loopback callback listener used to receive the identity provider's response. The listener reflected an arbitrary request's Origin header into its CORS response headers and accepted the first token-bearing request it received during the login window without verifying a CSRF state value bound to that specific login attempt. An attacker able to reach the listener during an active login might have leveraged this to submit a forged callback response, causing the authentication attempt to fail. The fix is available in Snowflake Connector for Python 4.8.0, Snowflake Go Driver v2.3.0, Snowflake JDBC Driver 4.4.0 (including the snowflake-jdbc-fips and snowflake-jdbc-thin artifacts), Snowflake Node.js Driver 3.4.0, Snowflake Connector for .NET 6.3.0, Snowflake ODBC Driver 4.0.0, Snowflake PHP PDO Driver 4.3.0, and libsnowflakeclient 2.11.1. Go v1 users must migrate to the latest major version of the module. Users must manually upgrade.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-114456"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-04T12:17:06Z",
    "severity": "MODERATE"
  },
  "details": "Multiple Snowflake client drivers implementing the `authenticator=externalbrowser` single sign-on flow could have allowed an attacker to interfere with a user\u0027s login attempt through weaknesses in the local loopback callback listener used to receive the identity provider\u0027s response. The listener reflected an arbitrary request\u0027s Origin header into its CORS response headers and accepted the first token-bearing request it received during the login window without verifying a CSRF state value bound to that specific login attempt. An attacker able to reach the listener during an active login might have leveraged this to submit a forged callback response, causing the authentication attempt to fail. The fix is available in Snowflake Connector for Python 4.8.0, Snowflake Go Driver v2.3.0, Snowflake JDBC Driver 4.4.0 (including the snowflake-jdbc-fips and snowflake-jdbc-thin artifacts), Snowflake Node.js Driver 3.4.0, Snowflake Connector for .NET 6.3.0, Snowflake ODBC Driver 4.0.0, Snowflake PHP PDO Driver 4.3.0, and libsnowflakeclient 2.11.1. Go v1 users must migrate to the latest major version of the module. Users must manually upgrade.",
  "id": "GHSA-crcx-4c4m-p23p",
  "modified": "2026-11-04T12:31:33Z",
  "published": "2026-11-04T12:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114456"
    },
    {
      "type": "WEB",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-630-september-30-2026"
    },
    {
      "type": "WEB",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-230-sep-30-2026"
    },
    {
      "type": "WEB",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-440-sep-30-2026"
    },
    {
      "type": "WEB",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-340-september-30-2026"
    },
    {
      "type": "WEB",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-400-sep-30-2026"
    },
    {
      "type": "WEB",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-430-oct-1-2026"
    },
    {
      "type": "WEB",
      "url": "https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.11.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-114456 (GCVE-0-2026-114456)

Vulnerability from cvelistv5 – Published: 2026-11-04 11:22 – Updated: 2026-11-04 20:00

Title

Missing origin validation for the externalbrowser authenticator callback in multiple Snowflake client drivers

Summary

Multiple Snowflake client drivers implementing the `authenticator=externalbrowser` single sign-on flow could have allowed an attacker to interfere with a user's login attempt through weaknesses in the local loopback callback listener used to receive the identity provider's response. The listener reflected an arbitrary request's Origin header into its CORS response headers and accepted the first token-bearing request it received during the login window without verifying a CSRF state value bound to that specific login attempt. An attacker able to reach the listener during an active login might have leveraged this to submit a forged callback response, causing the authentication attempt to fail. The fix is available in Snowflake Connector for Python 4.8.0, Snowflake Go Driver v2.3.0, Snowflake JDBC Driver 4.4.0 (including the snowflake-jdbc-fips and snowflake-jdbc-thin artifacts), Snowflake Node.js Driver 3.4.0, Snowflake Connector for .NET 6.3.0, Snowflake ODBC Driver 4.0.0, Snowflake PHP PDO Driver 4.3.0, and libsnowflakeclient 2.11.1. Go v1 users must migrate to the latest major version of the module. Users must manually upgrade.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-04 18:20 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

SNOWFLAKE CNA

CNA scorecard C 65/100 over 21 records in the last 180 days details

References

8 references

URL	Tags
https://github.com/snowflakedb/snowflake-connecto…
https://docs.snowflake.com/en/release-notes/clien…
https://docs.snowflake.com/en/release-notes/clien…
https://docs.snowflake.com/en/release-notes/clien…
https://docs.snowflake.com/en/release-notes/clien…
https://docs.snowflake.com/en/release-notes/clien…
https://docs.snowflake.com/en/release-notes/clien…
https://github.com/snowflakedb/libsnowflakeclient…

Impacted products

11 products

Vendor	Product	Version
Snowflake	Snowflake Connector for Python	Affected: 0 , < 4.8.0 (python)
Snowflake	Snowflake Go Driver	Affected: 1.1.5 , ≤ 1.19.1 (semver)
Snowflake	Snowflake Go Driver	Affected: 2.0.0 , < 2.3.0 (semver)
Snowflake	Snowflake JDBC Driver	Affected: 3.2.3 , < 4.4.0 (maven)
Snowflake	Snowflake JDBC Driver (FIPS)	Affected: 3.2.3 , < 4.4.0 (maven)
Snowflake	Snowflake JDBC Driver (Thin)	Affected: 3.2.3 , < 4.4.0 (maven)
Snowflake	Snowflake Node.js Driver	Affected: 1.6.0 , < 3.4.0 (semver)
Snowflake	Snowflake Connector for .NET	Affected: 1.0.12 , < 6.3.0 (semver)
Snowflake	Snowflake ODBC Driver	Affected: 3.7.0 , < 4.0.0 (semver)
Snowflake	Snowflake PHP PDO Driver	Affected: 3.2.0 , < 4.3.0 (semver)
Snowflake	Snowflake Libsnowflakeclient	Affected: 2.1.0 , < 2.11.1 (semver)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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                "id": "CVE-2026-114456",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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