CVE-2026-114456

    Dashboard / Vulnerabilities / CVE-2026-114456

    CVE-2026-114456

    Published: 4 Nov 2026Last Modified: 8 Nov 2026

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

    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.

    References: https://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-630-september-30-2026, https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-230-sep-30-2026, https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-440-sep-30-2026, https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-340-september-30-2026, https://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-400-sep-30-2026, https://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-430-oct-1-2026, https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.11.1, https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.8.0, https://pkg.go.dev, https://pypi.org, https://registry.npmjs.org, https://repo.maven.apache.org/maven2, https://www.nuget.org, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114456.json, https://nvd.nist.gov/vuln/detail/CVE-2026-114456, https://github.com/snowflakedb/gosnowflake, https://github.com/snowflakedb/libsnowflakeclient, https://github.com/snowflakedb/pdo_snowflake, https://github.com/snowflakedb/snowflake-connector-net, https://github.com/snowflakedb/snowflake-connector-nodejs, https://github.com/snowflakedb/snowflake-connector-python, https://github.com/snowflakedb/snowflake-jdbc

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- be663dedff6fc7901ef4aa3f80061f60c57a16e9
    Fixed -None

    Affected versions

    v2.2.0
    v2.2.3
    v2.2.2
    v2.2.1
    v2.2.10
    v2.2.9
    v2.2.8
    v2.2.7
    v2.2.6
    v2.2.5
    v2.2.4

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-114456 | CVE-DB