Issue with Amazon Redshift Python Connector and the BrowserAzureOAuth2CredentialsProvider plugin
Summary
Amazon Redshift Python Connector is a pure Python connector to Redshift (i.e., driver) that implements the Python Database API Specification 2.0.
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. Please do not create a public GitHub issue.
[1] Vulnerability reporting page: https://aws.amazon.com/security/vulnerability-reporting
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | redshift-connector | >= 2.0.872, < 2.1.7 | 2.1.7 |
References
- https://github.com/aws/amazon-redshift-python-driver/security/advisories/GHSA-r244-wg5g-6w2r
- https://nvd.nist.gov/vuln/detail/CVE-2025-5279
- https://aws.amazon.com/security/security-bulletins
- https://aws.amazon.com/security/security-bulletins/AWS-2025-011
- https://github.com/aws/amazon-redshift-python-driver
- https://github.com/aws/amazon-redshift-python-driver/releases/tag/v2.1.7
- https://pypi.org/project/redshift-connector
- https://github.com/advisories/GHSA-r244-wg5g-6w2r
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-295- Platform
- Python (PyPI)
- Package
redshift-connector- Disclosed
- 28.05.2025
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1867 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-r244-wg5g-6w2r - CC BY 4.0
Vulnerability history: redshift-connector
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 12.2024 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
Disclosures per year
- 2024: 1
- 2025: 1
- 2026: 1
-
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