Medium severity5.3GHSA Advisory· Published May 13, 2026· Updated May 14, 2026
CVE-2026-44431
CVE-2026-44431
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- github.com/advisories/GHSA-qccp-gfcp-xxvcghsaADVISORY
- github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvcnvdMitigationVendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2026-44431ghsa
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