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CVE-2026-44431

Published: May 13, 2026

Modified: May 13, 2026

PUBLISHED

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.

Vendor	Product	Versions
urllib3	urllib3	affected `>= 1.23, < 2.7.0`

Weaknesses (CWE)

References

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

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CVE-2026-44431 - Security Vulnerability | QwikSec