HIGH7.5

PYSEC-2026-1867

Issue with Amazon Redshift Python Connector and the BrowserAzureOAuth2CredentialsProvider plugin

Quick fix

PYSEC-2026-1867 — redshift-connector: upgrade to the fixed version with the command below.

pip install --upgrade 'redshift-connector>=2.1.7'

Details

### Summary [Amazon Redshift Python Connector](https://docs.aws.amazon.com/redshift/latest/mgmt/python-redshift-driver.html) is a pure Python connector to Redshift (i.e., driver) that implements the [Python Database API Specification 2.0](https://www.python.org/dev/peps/pep-0249/).

When the Amazon Redshift Python Connector is configured with the BrowserAzureOAuth2CredentialsProvider plugin, the driver skips the SSL certificate validation step for the Identity Provider.

### Impact

An insecure connection could allow an actor to intercept the token exchange process and retrieve an access token.

**Impacted versions:** >=2.0.872;<=2.1.6

### Patches

Upgrade Amazon Redshift Python Connector to version 2.1.7 and ensure any forked or derivative code is patched to incorporate the new fixes.

### Workarounds

None

### References

If you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page [1] or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.

[1] Vulnerability reporting page: https://aws.amazon.com/security/vulnerability-reporting

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/redshift-connector

Introduced in: 2.0.872Fixed in: 2.1.7

Fixpip install --upgrade 'redshift-connector>=2.1.7'