CVE-2023-43804

CVE-2023-43804 affects the Python urllib3 library, where a Cookie header may be leaked across cross-origin redirects if redirects are not disabled. The issue is resolved in urllib3 1.26.17 or 2.0.5. Affected environments are confirmed in multiple reports, including AlmaLinux and Brocade advisorie...

CVE-2023-45803

CVE-2023-45803 affects the Python urllib3 library. The issue arises when handling HTTP redirects (301/302/303) after a request’s method changes from something that can carry a body (e.g., POST) to GET, where urllib3 previously did not remove the HTTP request body. This could allow leakage of sens...

CVE-2024-37891

CVE-2024-37891 affects urllib3 (Python HTTP client) across multiple distributions (e.g., python3-urllib3, python3.13-pip, python-pip, etc.). The issue: when not using urllib3’s ProxyManager proxy support, a configured Proxy-Authorization header could be sent, and urllib3 may not strip it on cross...