Bump the uv group across 1 directory with 2 updates

[dependabot]

Bumps the uv group with 2 updates in the /backend directory: oauthlib and urllib3.

Updates oauthlib from 3.3.1 to 4.0.0

Release notes

Sourced from oauthlib's releases.

4.0.0

Introduction

The release 4.0.0 defines the foundation that enables AI contributions and will improve the maintenance of oauthlib by using AI agents, skills, code for both contributors and maintainers. It includes devcontainer, skills and cleanup of instructions.

What's Changed

Important: this release contains 2 breaking changes. See CHANGELOG.rst for details:

• Removed JSONP support from token revocation endpoint (#951)
• Client authentication validation reorganized across grants (#919, #920): the grant_type parameter is now validated before client authentication.

• Replace pyenv with uv in documentation and tooling by @​JonathanHuot in oauthlib/oauthlib#910
• Improve github action to publish package by @​JonathanHuot in oauthlib/oauthlib#915
• Add pre-commit to run linters, formatters, etc. on code changes by @​cclauss in oauthlib/oauthlib#918
• Fix client authentication for DeviceCodeGrant when getting a token by @​hekhuisk in oauthlib/oauthlib#920
• Add project URLs to this project's PyPI page by @​Flimm in oauthlib/oauthlib#921
• Fix a typo in ServiceApplicationClient docstring. by @​rafalkrupinski in oauthlib/oauthlib#923
• Correct grammar in function help by @​verhovsky in oauthlib/oauthlib#924
• Add Python 3.14 to the testing by @​cclauss in oauthlib/oauthlib#925
• Initial python/uv/tox devcontainer by @​JonathanHuot in oauthlib/oauthlib#930
• Fix ruff checks about unused variables by @​JonathanHuot in oauthlib/oauthlib#931
• Drop EOL Python 3.8 from CI by @​auvipy in oauthlib/oauthlib#932
• Set Open Collective username to 'oauthlib' by @​auvipy in oauthlib/oauthlib#933
• pre-commit autoupdate 2026_02_21 by @​cclauss in oauthlib/oauthlib#934
• Remove a trailing whitespace fo fix failing pre-commit by @​cclauss in oauthlib/oauthlib#935
• Fix typos discovered by typos by @​cclauss in oauthlib/oauthlib#938
• Add resource to Request._params by @​juannyG in oauthlib/oauthlib#942
• Release 3.4.0: Add OAuthLib Maintainer agent by @​JonathanHuot in oauthlib/oauthlib#950
• Remove JSONP support from token revocation by @​JonathanHuot in oauthlib/oauthlib#951
• Improve PKCE code comparison by @​JonathanHuot in oauthlib/oauthlib#963
• Release 4.0.0: bump and update changelog by @​JonathanHuot in oauthlib/oauthlib#976

New Contributors

• @​hekhuisk made their first contribution in oauthlib/oauthlib#920
• @​Flimm made their first contribution in oauthlib/oauthlib#921
• @​verhovsky made their first contribution in oauthlib/oauthlib#924
• @​juannyG made their first contribution in oauthlib/oauthlib#942

Full Changelog: oauthlib/oauthlib@v3.3.1...v4.0.0

Changelog

Sourced from oauthlib's changelog.

4.0.0 (2026-09-28):

OAuth2.0 Provider:

• Breaking: #951: Removed JSONP support from token revocation endpoint. JSONP has been superseded by CORS for cross-origin requests. The enable_jsonp parameter has been removed from RevocationEndpoint and the callback parameter has been removed from prepare_token_revocation_request.
• Breaking: #919, #920: Fixed DeviceCodeGrant.validate_token_request trying to authenticate public clients. Client authentication validation has been reorganized and is now shared across AuthorizationCodeGrant, DeviceCodeGrant, RefreshTokenGrant and ResourceOwnerPasswordCredentialsGrant: the grant_type parameter is validated before client authentication, so requests missing grant_type now return 400 invalid_request instead of 401 invalid_client.
• #963: Improved PKCE code comparison

Misc:

• #904: Stop installing examples into site-packages.
• #930: Add devcontainer, Add Python3.14, Python3.14t.
• #931: Fix ruff checks about unused variables.
• #932: Dropped EOL Python 3.8 from CI.
• #934: Pre-commit hooks autoupdate.
• #938: Fix typos discovered by typos.
• Add OAuthLib Maintainer agent for automated issue/PR triage and release management.

Commits

• 145a9a4 Release 4.0.0: clarify changelog breaking changes and reformat entries
• c8344d6 Update CHANGELOG.rst
• e172830 Release 4.0.0: bump version to 4.0.0 and update changelog
• 40b0ab5 Merge pull request #963 from oauthlib/ft/pkcecode
• 1b68cea Merge pull request #920 from hekhuisk/validate-client-authentication
• c951a1d Organized validate_client functions for all grant to avoid mistake in grnat i...
• 74664d3 Improve PKCE code comparison
• 9859b05 Merge pull request #950 from oauthlib/feature/3.4.0-maintainer-agent
• 9bf9b97 Merge branch 'master' into feature/3.4.0-maintainer-agent
• 1ba7429 Clarify agent instructions
• Additional commits viewable in compare view

Updates urllib3 from 2.7.0 to 2.8.0

Release notes

Sourced from urllib3's releases.

2.8.0

🚀 urllib3 is fundraising for HTTP/2 support

urllib3 is raising ~$40,000 USD to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects please consider contributing financially to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.

Thank you for your support.

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)

[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.

Configure proxy CA certificates and client certificates in proxy_ssl_context, and proxy identity checks with proxy_assert_hostname or proxy_assert_fingerprint. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.

[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. (#5044)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). (#4945)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). (#5092)

Bugfixes

• Fixed response header handling to replace obsolete folded header lines (obs-fold) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as Set-Cookie. (#1362)

• Fixed usage of proxy_ssl_context with ProxyManager when use_forwarding_for_https=True. Passing ssl_context instead of proxy_ssl_context for HTTPS proxies in this configuration now emits a FutureWarning and will raise an error in v3.0. (#2577)

• Changed behavior of the default ConnectionPool.pool initialization. LifoQueue is now resolved from the queue module after the ConnectionPool is instantiated instead of using the default cached QueueCls class property. This is done because sometimes the queue.LifoQueue is monkey-patched late in the program, such as by gevent. (#3289)

• Raised UnrewindableBodyError instead of ValueError when retrying a request whose body had tell() but not seek(). (#3779)

• Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (#3785)

• Fixed HTTPResponse.drain_conn() to discard unread response data in 64 KiB chunks (same as the default amt when doing HTTPResponse.stream(...)). (#5019)

• Fixed is_ipaddress() to detect non-standard IPv4 forms accepted by socket.connect, such as hex (0x7f000001), octal (0177.0.0.1), and decimal integers (2130706433), ensuring SSL certificate verification uses the correct mode for these addresses. (#5029)

• Fixed HTTPConnectionPool.urlopen raising a misleading FullPoolError instead of ValueError when called with an invalid timeout argument on a pool created with block=True. (#5059)

• Fixed port-zero handling to preserve explicit :0 values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, connection_from_url(), and HTTP/2 request authority. (#5071, #5101)

• Fixed a bug where PoolManager passed the assert_hostname and assert_fingerprint parameters to HTTP connection pools. (#5077)

• Fixed HTTPConnectionPool.urlopen() and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (#5079)

• Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (#5091)

• Fixed HTTPSConnection.connect() overriding ProxyConfig.ssl_context's certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.

  HTTPSConnection no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its ssl_context as a fallback when an HTTPS proxy forwards an HTTP target. (#5093)

• Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (#5095)

... (truncated)

Changelog

Sourced from urllib3's changelog.

2.8.0 (2026-09-15)

Security

Fixed the following security issues:

• The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77>__)
• HTTPResponse.stream() and read_chunked() could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw>__)
• Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g>__)

.. caution::

urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
Configure proxy CA certificates and client certificates in
proxy_ssl_context, and proxy identity checks with
proxy_assert_hostname or proxy_assert_fingerprint.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.

Deprecations & Removals

• Deprecated using an empty collection as the Retry option allowed_methods to retry any verb. ([#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044>__)

Features

• Added Url.auth_decoded and Url.auth_decoded_joined convenience properties to the result of parse_url(). ([#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945>__)
• Added basic_auth_encoding and proxy_basic_auth_encoding parameters to urllib3.util.make_headers(). ([#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092>__)

Bugfixes

... (truncated)

Commits

• b1d30ab Release 2.8.0
• 9016d7e Skip test_read_chunked_with_trailing_data_does_not_hang for brotlicffi (#5258)
• 9101f58 Fix nox -s docs warning (#5256)
• cd770b0 Merge commit from fork
• ea2ad7b Merge commit from fork
• 0716e31 Fix loading unencrypted client keys with a password in pyOpenSSL (#5255)
• 43c68c8 Test pickling of InvalidChunkLength (#5247)
• 308b279 Share security policy between GitHub and Read the Docs (#5253)
• 53fa073 Add policy on duplicate pull requests (#5252)
• 5f2a6a8 Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (#5232)
• Additional commits viewable in compare view

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