dependabot[bot] 09fd2645c2 Bump urllib3 from 2.5.0 to 2.6.0 (#19282)
Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.5.0 to 2.6.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.6.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project after a sharp decline
in financial support. If your company or organization uses Python and
would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and
thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<ul>
<li>Fixed a security issue where streaming API could improperly handle
highly compressed HTTP content (&quot;decompression bombs&quot;) leading
to excessive resource consumption even when a small amount of data was
requested. Reading small chunks of compressed data is safer and much
more efficient now. (CVE-2025-66471 reported by <a
href="https://github.com/Cycloctane"><code>@​Cycloctane</code></a>, 8.9
High, GHSA-2xpw-w6gg-jr37)</li>
<li>Fixed a security issue where an attacker could compose an HTTP
response with virtually unlimited links in the
<code>Content-Encoding</code> header, potentially leading to a denial of
service (DoS) attack by exhausting system resources during decoding. The
number of allowed chained encodings is now limited to 5. (CVE-2025-66418
reported by <a
href="https://github.com/illia-v"><code>@​illia-v</code></a>, 8.9 High,
GHSA-gm62-xv2j-4w53)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]</p>
<ul>
<li>If urllib3 is not installed with the optional
<code>urllib3[brotli]</code> extra, but your environment contains a
Brotli/brotlicffi/brotlipy package anyway, make sure to upgrade it to at
least Brotli 1.2.0 or brotlicffi 1.2.0.0 to benefit from the security
fixes and avoid warnings. Prefer using <code>urllib3[brotli]</code> to
install a compatible Brotli package automatically.</li>
<li>If you use custom decompressors, please make sure to update them to
respect the changed API of
<code>urllib3.response.ContentDecoder</code>.</li>
</ul>
</blockquote>
<h2>Features</h2>
<ul>
<li>Enabled retrieval, deletion, and membership testing in
<code>HTTPHeaderDict</code> using bytes keys. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3653">#3653</a>)</li>
<li>Added host and port information to string representations of
<code>HTTPConnection</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3666">#3666</a>)</li>
<li>Added support for Python 3.14 free-threading builds explicitly. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3696">#3696</a>)</li>
</ul>
<h2>Removals</h2>
<ul>
<li>Removed the <code>HTTPResponse.getheaders()</code> method in favor
of <code>HTTPResponse.headers</code>. Removed the
<code>HTTPResponse.getheader(name, default)</code> method in favor of
<code>HTTPResponse.headers.get(name, default)</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3622">#3622</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>Fixed redirect handling in <code>urllib3.PoolManager</code> when an
integer is passed for the retries parameter. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3649">#3649</a>)</li>
<li>Fixed <code>HTTPConnectionPool</code> when used in Emscripten with
no explicit port. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3664">#3664</a>)</li>
<li>Fixed handling of <code>SSLKEYLOGFILE</code> with expandable
variables. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3700">#3700</a>)</li>
</ul>
<h2>Misc</h2>
<ul>
<li>Changed the <code>zstd</code> extra to install
<code>backports.zstd</code> instead of <code>zstandard</code> on Python
3.13 and before. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3693">#3693</a>)</li>
<li>Improved the performance of content decoding by optimizing
<code>BytesQueueBuffer</code> class. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3710">#3710</a>)</li>
<li>Allowed building the urllib3 package with newer setuptools-scm v9.x.
(<a
href="https://redirect.github.com/urllib3/urllib3/issues/3652">#3652</a>)</li>
<li>Ensured successful urllib3 builds by setting Hatchling requirement
to ≥ 1.27.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3638">#3638</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.6.0 (2025-12-05)</h1>
<h2>Security</h2>
<ul>
<li>Fixed a security issue where streaming API could improperly handle
highly
compressed HTTP content (&quot;decompression bombs&quot;) leading to
excessive resource
consumption even when a small amount of data was requested. Reading
small
chunks of compressed data is safer and much more efficient now.
(<code>GHSA-2xpw-w6gg-jr37
&lt;https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37&gt;</code>__)</li>
<li>Fixed a security issue where an attacker could compose an HTTP
response with
virtually unlimited links in the <code>Content-Encoding</code> header,
potentially
leading to a denial of service (DoS) attack by exhausting system
resources
during decoding. The number of allowed chained encodings is now limited
to 5.
(<code>GHSA-gm62-xv2j-4w53
&lt;https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53&gt;</code>__)</li>
</ul>
<p>.. caution::</p>
<ul>
<li>
<p>If urllib3 is not installed with the optional
<code>urllib3[brotli]</code> extra, but
your environment contains a Brotli/brotlicffi/brotlipy package anyway,
make
sure to upgrade it to at least Brotli 1.2.0 or brotlicffi 1.2.0.0 to
benefit from the security fixes and avoid warnings. Prefer using
<code>urllib3[brotli]</code> to install a compatible Brotli package
automatically.</p>
</li>
<li>
<p>If you use custom decompressors, please make sure to update them to
respect the changed API of
<code>urllib3.response.ContentDecoder</code>.</p>
</li>
</ul>
<h2>Features</h2>
<ul>
<li>Enabled retrieval, deletion, and membership testing in
<code>HTTPHeaderDict</code> using bytes keys.
(<code>[#3653](https://github.com/urllib3/urllib3/issues/3653)
&lt;https://github.com/urllib3/urllib3/issues/3653&gt;</code>__)</li>
<li>Added host and port information to string representations of
<code>HTTPConnection</code>.
(<code>[#3666](https://github.com/urllib3/urllib3/issues/3666)
&lt;https://github.com/urllib3/urllib3/issues/3666&gt;</code>__)</li>
<li>Added support for Python 3.14 free-threading builds explicitly.
(<code>[#3696](https://github.com/urllib3/urllib3/issues/3696)
&lt;https://github.com/urllib3/urllib3/issues/3696&gt;</code>__)</li>
</ul>
<h2>Removals</h2>
<ul>
<li>Removed the <code>HTTPResponse.getheaders()</code> method in favor
of <code>HTTPResponse.headers</code>.
Removed the <code>HTTPResponse.getheader(name, default)</code> method in
favor of <code>HTTPResponse.headers.get(name, default)</code>.
(<code>[#3622](https://github.com/urllib3/urllib3/issues/3622)
&lt;https://github.com/urllib3/urllib3/issues/3622&gt;</code>__)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>Fixed redirect handling in <code>urllib3.PoolManager</code> when an
integer is passed
for the retries parameter.
(<code>[#3649](https://github.com/urllib3/urllib3/issues/3649)
&lt;https://github.com/urllib3/urllib3/issues/3649&gt;</code>__)</li>
<li>Fixed <code>HTTPConnectionPool</code> when used in Emscripten with
no explicit port.
(<code>[#3664](https://github.com/urllib3/urllib3/issues/3664)
&lt;https://github.com/urllib3/urllib3/issues/3664&gt;</code>__)</li>
<li>Fixed handling of <code>SSLKEYLOGFILE</code> with expandable
variables.
(<code>[#3700](https://github.com/urllib3/urllib3/issues/3700)
&lt;https://github.com/urllib3/urllib3/issues/3700&gt;</code>__)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="720f484b60"><code>720f484</code></a>
Release 2.6.0</li>
<li><a
href="24d7b67eac"><code>24d7b67</code></a>
Merge commit from fork</li>
<li><a
href="c19571de34"><code>c19571d</code></a>
Merge commit from fork</li>
<li><a
href="816fcf0452"><code>816fcf0</code></a>
Bump actions/setup-python from 6.0.0 to 6.1.0 (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3725">#3725</a>)</li>
<li><a
href="18af0a10ef"><code>18af0a1</code></a>
Improve speed of <code>BytesQueueBuffer.get()</code> by using memoryview
(<a
href="https://redirect.github.com/urllib3/urllib3/issues/3711">#3711</a>)</li>
<li><a
href="1f6abac3e6"><code>1f6abac</code></a>
Bump versions of pre-commit hooks (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3716">#3716</a>)</li>
<li><a
href="1c8fbf787b"><code>1c8fbf7</code></a>
Bump actions/checkout from 5.0.0 to 6.0.0 (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3722">#3722</a>)</li>
<li><a
href="7784b9eee9"><code>7784b9e</code></a>
Add Python 3.15 to CI (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3717">#3717</a>)</li>
<li><a
href="0241c9e728"><code>0241c9e</code></a>
Updated docs to reflect change in optional zstd dependency from
<code>zstandard</code> t...</li>
<li><a
href="7afcabb648"><code>7afcabb</code></a>
Expand environment variable of SSLKEYLOGFILE (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3705">#3705</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.5.0...2.6.0">compare
view</a></li>
</ul>
</details>
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.. image:: ./docs/element_logo_white_bg.svg
   :height: 60px

**Element Synapse - Matrix homeserver implementation**

|support| |development| |documentation| |license| |pypi| |python|

Synapse is an open source `Matrix <https://matrix.org>`__ homeserver
implementation, written and maintained by `Element <https://element.io>`_.
`Matrix <https://github.com/matrix-org>`__ is the open standard for secure and
interoperable real-time communications. You can directly run and manage the
source code in this repository, available under an AGPL license (or
alternatively under a commercial license from Element).

There is no support provided by Element unless you have a subscription from
Element.

🚀 Getting started
==================

This component is developed and maintained by `Element <https://element.io>`_.
It gets shipped as part of the **Element Server Suite (ESS)** which provides the
official means of deployment.

ESS is a Matrix distribution from Element with focus on quality and ease of use.
It ships a full Matrix stack tailored to the respective use case.

There are three editions of ESS:

- `ESS Community <https://github.com/element-hq/ess-helm>`_ - the free Matrix
  distribution from Element tailored to small-/mid-scale, non-commercial
  community use cases
- `ESS Pro <https://element.io/server-suite>`_ - the commercial Matrix
  distribution from Element for professional use
- `ESS TI-M <https://element.io/server-suite/ti-messenger>`_ - a special version
  of ESS Pro focused on the requirements of TI-Messenger Pro and ePA as
  specified by the German National Digital Health Agency Gematik


🛠️ Standalone installation and configuration
============================================

The Synapse documentation describes `options for installing Synapse standalone
<https://element-hq.github.io/synapse/latest/setup/installation.html>`_. See
below for more useful documentation links.

- `Synapse configuration options <https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation.html>`_
- `Synapse configuration for federation <https://element-hq.github.io/synapse/latest/federate.html>`_
- `Using a reverse proxy with Synapse <https://element-hq.github.io/synapse/latest/reverse_proxy.html>`_
- `Upgrading Synapse <https://element-hq.github.io/synapse/develop/upgrade.html>`_


🎯 Troubleshooting and support
==============================

🚀 Professional support
-----------------------

Enterprise quality support for Synapse including SLAs is available as part of an
`Element Server Suite (ESS) <https://element.io/pricing>`_ subscription.

If you are an existing ESS subscriber then you can raise a `support request <https://ems.element.io/support>`_
and access the `Element product documentation <https://docs.element.io>`_.

🤝 Community support
--------------------

The `Admin FAQ <https://element-hq.github.io/synapse/latest/usage/administration/admin_faq.html>`_
includes tips on dealing with some common problems. For more details, see
`Synapse's wider documentation <https://element-hq.github.io/synapse/latest/>`_.

For additional support installing or managing Synapse, please ask in the community
support room |room|_ (from a matrix.org account if necessary). We do not use GitHub
issues for support requests, only for bug reports and feature requests.

.. |room| replace:: ``#synapse:matrix.org``
.. _room: https://matrix.to/#/#synapse:matrix.org

.. |docs| replace:: ``docs``
.. _docs: docs


🛠️ Development
==============

We welcome contributions to Synapse from the community!
The best place to get started is our
`guide for contributors <https://element-hq.github.io/synapse/latest/development/contributing_guide.html>`_.
This is part of our broader `documentation <https://element-hq.github.io/synapse/latest>`_, which includes
information for Synapse developers as well as Synapse administrators.

Developers might be particularly interested in:

* `Synapse's database schema <https://element-hq.github.io/synapse/latest/development/database_schema.html>`_,
* `notes on Synapse's implementation details <https://element-hq.github.io/synapse/latest/development/internal_documentation/index.html>`_, and
* `how we use git <https://element-hq.github.io/synapse/latest/development/git.html>`_.

Alongside all that, join our developer community on Matrix:
`#synapse-dev:matrix.org <https://matrix.to/#/#synapse-dev:matrix.org>`_, featuring real humans!

Copyright and Licensing
=======================

  | Copyright 20142017 OpenMarket Ltd
  | Copyright 2017 Vector Creations Ltd
  | Copyright 20172025 New Vector Ltd
  | Copyright 2025 Element Creations Ltd

This software is dual-licensed by Element Creations Ltd (Element). It can be
used either:

(1) for free under the terms of the GNU Affero General Public License (as
    published by the Free Software Foundation, either version 3 of the License,
    or (at your option) any later version); OR

(2) under the terms of a paid-for Element Commercial License agreement between
    you and Element (the terms of which may vary depending on what you and
    Element have agreed to).

Unless required by applicable law or agreed to in writing, software distributed
under the Licenses is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied. See the Licenses for the
specific language governing permissions and limitations under the Licenses.

Please contact `licensing@element.io <mailto:licensing@element.io>`_ to purchase
an Element commercial license for this software.


.. |support| image:: https://img.shields.io/badge/matrix-community%20support-success
  :alt: (get community support in #synapse:matrix.org)
  :target: https://matrix.to/#/#synapse:matrix.org

.. |development| image:: https://img.shields.io/matrix/synapse-dev:matrix.org?label=development&logo=matrix
  :alt: (discuss development on #synapse-dev:matrix.org)
  :target: https://matrix.to/#/#synapse-dev:matrix.org

.. |documentation| image:: https://img.shields.io/badge/documentation-%E2%9C%93-success
  :alt: (Rendered documentation on GitHub Pages)
  :target: https://element-hq.github.io/synapse/latest/

.. |license| image:: https://img.shields.io/github/license/element-hq/synapse
  :alt: (check license in LICENSE file)
  :target: LICENSE

.. |pypi| image:: https://img.shields.io/pypi/v/matrix-synapse
  :alt: (latest version released on PyPi)
  :target: https://pypi.org/project/matrix-synapse

.. |python| image:: https://img.shields.io/pypi/pyversions/matrix-synapse
  :alt: (supported python versions)
  :target: https://pypi.org/project/matrix-synapse
Description
Synapse: Matrix homeserver written in Python/Twisted + Rust
Readme 551 MiB
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