Vulnerability-Lookup

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

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            "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
            "url": "https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.11.1"
          },
          {
            "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
            "url": "https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.8.0"
          }
        ],
        "sourceIdentifier": "412d305a-227d-44f9-a262-a31ba44f2aea",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-346"
              }
            ],
            "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-114456",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-11-04T18:20:22.194471Z",
                    "version": "2.0.3"
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            "providerMetadata": {
              "dateUpdated": "2026-11-04T19:59:44.433Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://pypi.org",
              "defaultStatus": "unaffected",
              "packageName": "snowflake-connector-python",
              "product": "Snowflake Connector for Python",
              "repo": "https://github.com/snowflakedb/snowflake-connector-python",
              "vendor": "Snowflake",
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                  "version": "0",
                  "versionType": "python"
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            },
            {
              "collectionURL": "https://pkg.go.dev",
              "defaultStatus": "unaffected",
              "packageName": "github.com/snowflakedb/gosnowflake",
              "product": "Snowflake Go Driver",
              "repo": "https://github.com/snowflakedb/gosnowflake",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThanOrEqual": "1.19.1",
                  "status": "affected",
                  "version": "1.1.5",
                  "versionType": "semver"
                }
              ]
            },
            {
              "collectionURL": "https://pkg.go.dev",
              "defaultStatus": "unaffected",
              "packageName": "github.com/snowflakedb/gosnowflake/v2",
              "product": "Snowflake Go Driver",
              "repo": "https://github.com/snowflakedb/gosnowflake",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "2.3.0",
                  "status": "affected",
                  "version": "2.0.0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "collectionURL": "https://repo.maven.apache.org/maven2",
              "defaultStatus": "unaffected",
              "packageName": "net.snowflake:snowflake-jdbc",
              "product": "Snowflake JDBC Driver",
              "repo": "https://github.com/snowflakedb/snowflake-jdbc",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "4.4.0",
                  "status": "affected",
                  "version": "3.2.3",
                  "versionType": "maven"
                }
              ]
            },
            {
              "collectionURL": "https://repo.maven.apache.org/maven2",
              "defaultStatus": "unaffected",
              "packageName": "net.snowflake:snowflake-jdbc-fips",
              "product": "Snowflake JDBC Driver (FIPS)",
              "repo": "https://github.com/snowflakedb/snowflake-jdbc",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "4.4.0",
                  "status": "affected",
                  "version": "3.2.3",
                  "versionType": "maven"
                }
              ]
            },
            {
              "collectionURL": "https://repo.maven.apache.org/maven2",
              "defaultStatus": "unaffected",
              "packageName": "net.snowflake:snowflake-jdbc-thin",
              "product": "Snowflake JDBC Driver (Thin)",
              "repo": "https://github.com/snowflakedb/snowflake-jdbc",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "4.4.0",
                  "status": "affected",
                  "version": "3.2.3",
                  "versionType": "maven"
                }
              ]
            },
            {
              "collectionURL": "https://registry.npmjs.org",
              "defaultStatus": "unaffected",
              "packageName": "snowflake-sdk",
              "product": "Snowflake Node.js Driver",
              "repo": "https://github.com/snowflakedb/snowflake-connector-nodejs",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "3.4.0",
                  "status": "affected",
                  "version": "1.6.0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "collectionURL": "https://www.nuget.org",
              "defaultStatus": "unaffected",
              "packageName": "Snowflake.Data",
              "product": "Snowflake Connector for .NET",
              "repo": "https://github.com/snowflakedb/snowflake-connector-net",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "6.3.0",
                  "status": "affected",
                  "version": "1.0.12",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "unaffected",
              "product": "Snowflake ODBC Driver",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "4.0.0",
                  "status": "affected",
                  "version": "3.7.0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "unaffected",
              "product": "Snowflake PHP PDO Driver",
              "repo": "https://github.com/snowflakedb/pdo_snowflake",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "4.3.0",
                  "status": "affected",
                  "version": "3.2.0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "unaffected",
              "product": "Snowflake Libsnowflakeclient",
              "repo": "https://github.com/snowflakedb/libsnowflakeclient",
              "vendor": "Snowflake",
              "versions": [
                {
                  "lessThan": "2.11.1",
                  "status": "affected",
                  "version": "2.1.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "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."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-346",
                  "description": "Origin Validation Error",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-11-04T11:22:52.845Z",
            "orgId": "412d305a-227d-44f9-a262-a31ba44f2aea",
            "shortName": "SNOWFLAKE"
          },
          "references": [
            {
              "name": "Snowflake Connector for Python Release Notes",
              "url": "https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.8.0"
            },
            {
              "name": "Snowflake Go Driver Release Notes",
              "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-230-sep-30-2026"
            },
            {
              "name": "Snowflake JDBC Driver Release Notes",
              "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-440-sep-30-2026"
            },
            {
              "name": "Snowflake Node.js Driver Release Notes",
              "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-340-september-30-2026"
            },
            {
              "name": "Snowflake Connector for .NET Release Notes",
              "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-630-september-30-2026"
            },
            {
              "name": "Snowflake ODBC Driver Release Notes",
              "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-400-sep-30-2026"
            },
            {
              "name": "Snowflake PHP PDO Driver Release Notes",
              "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-430-oct-1-2026"
            },
            {
              "name": "Snowflake Libsnowflakeclient Release Notes",
              "url": "https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.11.1"
            }
          ],
          "title": "Missing origin validation for the externalbrowser authenticator callback in multiple Snowflake client drivers",
          "x_generator": {
            "engine": "cvelib 1.8.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "412d305a-227d-44f9-a262-a31ba44f2aea",
        "assignerShortName": "SNOWFLAKE",
        "cveId": "CVE-2026-114456",
        "datePublished": "2026-11-04T11:22:52.845Z",
        "dateReserved": "2026-10-21T14:36:58.722Z",
        "dateUpdated": "2026-11-04T20:00:58.177Z",
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    }
  }
}

FKIE_CVE-2026-114456

Vulnerability from fkie_nvd - Published: 2026-11-04 12:17 - Updated: 2026-11-04 20:19

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	412d305a-227d-44f9-a262-a31ba44f2aea	https://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-630-september-30-2026
	412d305a-227d-44f9-a262-a31ba44f2aea	https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-230-sep-30-2026
	412d305a-227d-44f9-a262-a31ba44f2aea	https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-440-sep-30-2026
	412d305a-227d-44f9-a262-a31ba44f2aea	https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-340-september-30-2026
	412d305a-227d-44f9-a262-a31ba44f2aea	https://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-400-sep-30-2026
	412d305a-227d-44f9-a262-a31ba44f2aea	https://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-430-oct-1-2026
	412d305a-227d-44f9-a262-a31ba44f2aea	https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.11.1
	412d305a-227d-44f9-a262-a31ba44f2aea	https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.8.0

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pypi.org",
          "defaultStatus": "unaffected",
          "packageName": "snowflake-connector-python",
          "product": "Snowflake Connector for Python",
          "repo": "https://github.com/snowflakedb/snowflake-connector-python",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.8.0",
              "status": "affected",
              "version": "0",
              "versionType": "python"
            }
          ]
        },
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "github.com/snowflakedb/gosnowflake",
          "product": "Snowflake Go Driver",
          "repo": "https://github.com/snowflakedb/gosnowflake",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThanOrEqual": "1.19.1",
              "status": "affected",
              "version": "1.1.5",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "github.com/snowflakedb/gosnowflake/v2",
          "product": "Snowflake Go Driver",
          "repo": "https://github.com/snowflakedb/gosnowflake",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "2.3.0",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "net.snowflake:snowflake-jdbc",
          "product": "Snowflake JDBC Driver",
          "repo": "https://github.com/snowflakedb/snowflake-jdbc",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.4.0",
              "status": "affected",
              "version": "3.2.3",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "net.snowflake:snowflake-jdbc-fips",
          "product": "Snowflake JDBC Driver (FIPS)",
          "repo": "https://github.com/snowflakedb/snowflake-jdbc",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.4.0",
              "status": "affected",
              "version": "3.2.3",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "net.snowflake:snowflake-jdbc-thin",
          "product": "Snowflake JDBC Driver (Thin)",
          "repo": "https://github.com/snowflakedb/snowflake-jdbc",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.4.0",
              "status": "affected",
              "version": "3.2.3",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://registry.npmjs.org",
          "defaultStatus": "unaffected",
          "packageName": "snowflake-sdk",
          "product": "Snowflake Node.js Driver",
          "repo": "https://github.com/snowflakedb/snowflake-connector-nodejs",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "3.4.0",
              "status": "affected",
              "version": "1.6.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://www.nuget.org",
          "defaultStatus": "unaffected",
          "packageName": "Snowflake.Data",
          "product": "Snowflake Connector for .NET",
          "repo": "https://github.com/snowflakedb/snowflake-connector-net",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "6.3.0",
              "status": "affected",
              "version": "1.0.12",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Snowflake ODBC Driver",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.0.0",
              "status": "affected",
              "version": "3.7.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Snowflake PHP PDO Driver",
          "repo": "https://github.com/snowflakedb/pdo_snowflake",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.3.0",
              "status": "affected",
              "version": "3.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Snowflake Libsnowflakeclient",
          "repo": "https://github.com/snowflakedb/libsnowflakeclient",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "2.11.1",
              "status": "affected",
              "version": "2.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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": "CVE-2026-114456",
  "lastModified": "2026-11-04T20:19:01.297",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-114456",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-11-04T18:20:22.194471Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-11-04T12:17:06.033",
  "references": [
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-630-september-30-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-230-sep-30-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-440-sep-30-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-340-september-30-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-400-sep-30-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-430-oct-1-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.11.1"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.8.0"
    }
  ],
  "sourceIdentifier": "412d305a-227d-44f9-a262-a31ba44f2aea",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ],
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "type": "Secondary"
    }
  ]
}

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"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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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.
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Action not permitted

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

FKIE_CVE-2026-114456

GHSA-CRCX-4C4M-P23P

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