Is there a public exploit for CVE-2026-114456?

No public exploit for CVE-2026-114456 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-114456?

CVE-2026-114456 scores CVSS 6.5 (v3.1), rated medium.

What does CVE-2026-114456 affect?

CVE-2026-114456 affects Snowflake Snowflake JDBC Driver (Thin), Snowflake libsnowflakeclient, Snowflake JDBC Driver (FIPS), Snowflake Connector for .NET, Snowflake Node.js Driver, Snowflake Connector for Python.

6.5 Medium

Multiple Snowflake client drivers implementing the authenticator=externalbrowser single sign-on flow could have allowed an attacker to…

CVE-2026-114456

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.

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 November 2026
Last updated: 4 November 2026
Affected: Snowflake · Snowflake Connector for .NET · Snowflake Connector for Python · Snowflake Go Driver · Snowflake JDBC Driver
Assigner: SNOWFLAKE

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

At the source

EUVD (ENISA)

References

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