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EUVD-2026-254872

fkie_cve-2025-5279

When the Amazon Redshift Python Connector is configured with the BrowserAzureOAuth2CredentialsProvider plugin, the driver skips the SSL certificate validation step for the Identity Provider. An insecure connection could allow an actor to intercept the token exchange process and retrieve an access token.

This issue has been addressed in driver version 2.1.7. Users should upgrade to address this issue and ensure any forked or derivative code is patched to incorporate the new fixes.

GHSA-r244-wg5g-6w2r — Issue with Amazon Redshift Python Connector and the BrowserAzureOAuth2CredentialsProvider plugin

Affected: PyPI: redshift-connector

### 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

PYSEC-2026-1867 — Issue with Amazon Redshift Python Connector and the BrowserAzureOAuth2CredentialsProvider plugin