Insufficiently Protected Credentials Affecting snowflake-connector-python package, versions [3.14.1,4.7.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-SNOWFLAKECONNECTORPYTHON-19653600
- published9 Sept 2026
- disclosed8 Sept 2026
- creditUnknown
Introduced: 8 Sep 2026
NewCVE-2026-86600 (opens in a new tab)How to fix?
Upgrade snowflake-connector-python to version 4.7.3 or higher.
Overview
snowflake-connector-python is a Snowflake Connector for Python
Affected versions of this package are vulnerable to Insufficiently Protected Credentials in the WORKLOAD_IDENTITY authenticator through AuthByWorkloadIdentity.prepare() in src/snowflake/connector/auth/workload_identity.py. An attacker can cause the driver to mint and send a fresh workload-identity credential to an attacker-controlled host by modifying the connection host in the configuration. The vulnerable flow fetches ambient cloud attestation before checking whether the destination is a recognized Snowflake endpoint, so a captured token can be replayed to Snowflake for as long as it remains valid, and on Azure the same path can expose a managed-identity token scoped to a non-Snowflake resource. Successful exploitation requires WORKLOAD_IDENTITY authentication on a workload with an ambient cloud identity, and it can break the confidentiality of the login credential while enabling unauthorized reuse of the token.