[ubuntu/resolute-security] python-urllib3 2.6.3-1ubuntu1.1 (Accepted)

Marc Deslauriers marc.deslauriers at canonical.com
Wed Jun 3 13:40:00 UTC 2026


python-urllib3 (2.6.3-1ubuntu1.1) resolute-security; urgency=medium

  * SECURITY UPDATE: sensitive headers not stripped in cross-origin redirects
    - debian/patches/CVE-2026-44431.patch: remove sensitive headers in proxy
      pools too in dummyserver/asgi_proxy.py, src/urllib3/connectionpool.py,
      test/with_dummyserver/test_proxy_poolmanager.py.
    - CVE-2026-44431
  * SECURITY UPDATE: resource consumption via response decompression
    - debian/patches/CVE-2026-44432.patch: fix full decompression on the 2nd
      small read from response using Brotli in
      src/urllib3/response.py, test/test_response.py,
      test/with_dummyserver/test_connection.py.
    - CVE-2026-44432

Date: 2026-05-22 20:31:10.963485+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/python-urllib3/2.6.3-1ubuntu1.1
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