Answer in brief
CVE-2026-114456 records a Medium severity (CVSS 6.5) vulnerability in Missing origin validation for the externalbrowser authenticator callback in multiple Snowflake client drivers. The current sources do not mark it as known exploited. The current feed maps Snowflake/github.com/snowflakedb/gosnowflake (generic), Snowflake/github.com/snowflakedb/gosnowflake/v2 (generic), Snowflake/net.snowflake:snowflake-jdbc (generic), Snowflake/net.snowflake:snowflake-jdbc-fips (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Snowflake/github.com/snowflakedb/gosnowflake (generic), Snowflake/github.com/snowflakedb/gosnowflake/v2 (generic), Snowflake/net.snowflake:snowflake-jdbc (generic), Snowflake/net.snowflake:snowflake-jdbc-fips (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Snowflake/github.com/snowflakedb/gosnowflakegeneric | >=1.1.5 <=1.19.1 | Not reported |
| Snowflake/github.com/snowflakedb/gosnowflake/v2generic | >=2.0.0 <2.3.0 | 2.3.0 |
| Snowflake/net.snowflake:snowflake-jdbcgeneric | >=3.2.3 <4.4.0 | 4.4.0 |
| Snowflake/net.snowflake:snowflake-jdbc-fipsgeneric | >=3.2.3 <4.4.0 | 4.4.0 |
| Snowflake/net.snowflake:snowflake-jdbc-thingeneric | >=3.2.3 <4.4.0 | 4.4.0 |
| Snowflake/snowflake-connector-pythongeneric | >=0 <4.8.0 | 4.8.0 |
| Snowflake/Snowflake.Datageneric | >=1.0.12 <6.3.0 | 6.3.0 |
| Snowflake/Snowflake Libsnowflakeclientgeneric | >=2.1.0 <2.11.1 | 2.11.1 |
| Snowflake/Snowflake ODBC Drivergeneric | >=3.7.0 <4.0.0 | 4.0.0 |
| Snowflake/Snowflake PHP PDO Drivergeneric | >=3.2.0 <4.3.0 | 4.3.0 |
| Snowflake/snowflake-sdkgeneric | >=1.6.0 <3.4.0 | 3.4.0 |
Published upstream
Nov 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.