CVE-2026-44431

HIGH SEVERITY

CVSS Score & Metrics

Base Score

5.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N                                    

Vulnerability Description

urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.

Vulnerability Details

Published Date

May 11, 2026

Last Modified

May 14, 2026

CWE ID

CWE-200

Source

GitHub

Vendor

pip

Product

urllib3

External References

https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc
https://github.com/advisories/GHSA-qccp-gfcp-xxvc

CVE-2026-44431

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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