Source: python-urllib3
Version: 2.6.3-2
Severity: important
Tags: security upstream
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>

Hi,

The following vulnerability was published for python-urllib3.

CVE-2026-44431[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-44431
    https://www.cve.org/CVERecord?id=CVE-2026-44431
[1] https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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