chore(deps): bump the python group with 4 updates

[dependabot]

Bumps the python group with 4 updates: urllib3, pyjwt, ruff and langchain.

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

Updates pyjwt from 2.13.0 to 2.14.0

Release notes

Sourced from pyjwt's releases.

PyJWT 2.14.0

See the 2.14.0 changelog for the complete release details and related security advisories.

Changelog

Sourced from pyjwt's changelog.

v2.14.0 <https://github.com/jpadilla/pyjwt/compare/2.13.0...2.14.0>__

Security

- Harden HMAC key validation against public-key material supplied as JWK,
  JWKS, array, encoded, BOM-prefixed, DER, or PEM input. See
  `GHSA-r6x4-923q-g947 <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-r6x4-923q-g947>`__,
  `GHSA-ffc3-869f-jxw9 <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-ffc3-869f-jxw9>`__,
  `GHSA-p4g4-x82p-q773 <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-p4g4-x82p-q773>`__,
  and `GHSA-w2cx-738m-mc7w <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-w2cx-738m-mc7w>`__.
- Reject automatic redirects when ``PyJWKClient`` fetches a JWKS, preventing
  redirected destinations from being treated as trusted key sources. See
  `GHSA-9v7f-9g4p-ffgj <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-9v7f-9g4p-ffgj>`__.
- Limit repeated JWKS refreshes caused by unknown key IDs while preserving
  normal key-rotation behavior. See
  `GHSA-2gx3-rcp4-g85q <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-2gx3-rcp4-g85q>`__.
- Handle deeply nested and malformed JWS/JWK input without uncaught recursion
  errors or whole-set parsing failures. See
  `GHSA-8wjv-2p76-3863 <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-8wjv-2p76-3863>`__
  and `GHSA-w6j9-cwv2-h6wq <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-w6j9-cwv2-h6wq>`__.
- Enforce compact JWS encoding rules during decoding. See
  `GHSA-hxm8-2xgr-2p9m <https://github.com/jpadilla/pyjwt/security/advisories/GHSA-hxm8-2xgr-2p9m>`__.
- Reject detached-payload arguments for attached JWS inputs. Thanks to `@xclow3n
  <https://github.com/xclow3n>`__ for reporting this behavior; fixed in commit
  `37b54877 <https://github.com/jpadilla/pyjwt/commit/37b54877bf7bea67e8149130e96929e3ec798122>`__.
Fixed

- Apply HMAC key validation consistently when keys are loaded through
  ``PyJWK`` and ``PyJWKClient``. See
  `GHSA-pxh4-856f-4h89 &lt;https://github.com/jpadilla/pyjwt/security/advisories/GHSA-pxh4-856f-4h89&gt;`__.
- Reject empty HMAC keys when represented as JWKs.
  See `GHSA-pxh4-856f-4h89 &lt;https://github.com/jpadilla/pyjwt/security/advisories/GHSA-pxh4-856f-4h89&gt;`__.
Fixed



Raise the documented PyJWTError subclass instead of leaking a

TypeError when the exp, nbf, or iat claim decodes to a

non-numeric, non-string value such as a list, dict, or null.

Commits

• c6fe464 release: prepare v2.14.0
• f541302 style: apply Ruff formatting
• 801cd12 fix: reject public JWK container HMAC keys
• af8181c fix: reject empty HMAC keys from JWKs
• ba4853a Throttle repeated PyJWKClient refreshes
• 2798504 fix: reject DER public keys as HMAC secrets
• 8b4e233 fix: reject loader-accepted PEM variants
• 1f8180a fix: format JWS tests
• cff1ac5 Fix redirect handler return annotation
• 0a795b8 Reject redirects in PyJWKClient fetches
• Additional commits viewable in compare view

Updates ruff from 0.16.6 to 0.16.8

Release notes

Sourced from ruff's releases.

0.16.8

Release Notes

Released on 2026-09-16.

Bug fixes

• Visit functional TypedDict keyword arguments correctly (#28584)
• [flake8-simplify] Detect nested async with under sync parent (SIM117) (#27821)
• [flake8-simplify] Preserve operand order in SIM109 fix (#27824)
• [pyupgrade] Preserve required parentheses in multiline UP040 fixes (#28164)
• [pyupgrade] Skip TypeVarTuple and ParamSpec conversions with bounds or constraints (UP040, UP046, UP047) (#28505)

Rule changes

• Add support for __lazy_modules__ (#28459)
• Recognize PEP-728 TypedDict class keywords (#28533)
• Recognize quoted types in typing.TypeForm (#28507)
• Support conditional assignment to __lazy_modules__ (#28491)
• [flake8-type-checking] Prefer lazy imports over TYPE_CHECKING on Python 3.15 and later (TC001, TC002, TC003) (#28541)
• [pyupgrade] Make the fix for UP040 always unsafe (#28526)
• [pyupgrade] Stop recommending deprecated ByteString aliases (UP035) (#28498)
• [ruff, flake8-use-pathlib] Recognize the parent_mode argument (RUF064, PTH103) (#28528)
• [ruff] Detect \Z in pytest.raises() match patterns (RUF043) (#28598)

CLI

• Use rule name and code in formatter incompatibility warnings (#28571)

Configuration

• [flake8-tidy-imports] Add extend-banned-api (#28644)

Contributors

• @​VedantMadane
• @​alzeph
• @​charliermarsh
• @​fredrikblau
• @​ntBre
• @​zsol
• @​Aniket-a14
• @​r-b-1

Install ruff 0.16.8

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-installer.sh | sh
</tr></table> 

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.8

Released on 2026-09-16.

Bug fixes

• Visit functional TypedDict keyword arguments correctly (#28584)
• [flake8-simplify] Detect nested async with under sync parent (SIM117) (#27821)
• [flake8-simplify] Preserve operand order in SIM109 fix (#27824)
• [pyupgrade] Preserve required parentheses in multiline UP040 fixes (#28164)
• [pyupgrade] Skip TypeVarTuple and ParamSpec conversions with bounds or constraints (UP040, UP046, UP047) (#28505)

Rule changes

• Add support for __lazy_modules__ (#28459)
• Recognize PEP-728 TypedDict class keywords (#28533)
• Recognize quoted types in typing.TypeForm (#28507)
• Support conditional assignment to __lazy_modules__ (#28491)
• [flake8-type-checking] Prefer lazy imports over TYPE_CHECKING on Python 3.15 and later (TC001, TC002, TC003) (#28541)
• [pyupgrade] Make the fix for UP040 always unsafe (#28526)
• [pyupgrade] Stop recommending deprecated ByteString aliases (UP035) (#28498)
• [ruff, flake8-use-pathlib] Recognize the parent_mode argument (RUF064, PTH103) (#28528)
• [ruff] Detect \Z in pytest.raises() match patterns (RUF043) (#28598)

CLI

• Use rule name and code in formatter incompatibility warnings (#28571)

Configuration

• [flake8-tidy-imports] Add extend-banned-api (#28644)

Contributors

• @​VedantMadane
• @​alzeph
• @​charliermarsh
• @​fredrikblau
• @​ntBre
• @​zsol
• @​Aniket-a14
• @​r-b-1

0.16.7

Released on 2026-09-10.

Preview features

• [ruff] Add rule for default values on method receivers (RUF077) (#26700)

... (truncated)

Commits

• 62914c4 Bump version to 0.16.8 (#28648)
• c47e0cd [ty] Bound aliased intersection expansion during inference (#28546)
• ff4747b renovate: update uv hashes correctly with setup-uv (#28621)
• 94efeaa [ty] Compact reachable binding and declaration histories (#28349)
• 50020fb [ty] Avoid storing constraint nodes twice (#28375)
• 446bb68 [ty] Compare bound-method receivers before signatures (#28384)
• 304ab86 [flake8-type-checking] Prefer lazy imports over TYPE_CHECKING on 3.15+ (`...
• d940b24 [ty] Watch script dependencies in CLI watch mode (#28125)
• fe9f065 [flake8-tidy-imports] Add extend-banned-api (#28644)
• 31131db [ty] Support type[A & B] (#27124)
• Additional commits viewable in compare view

Updates langchain from 1.4.0 to 1.4.1

Release notes

Sourced from langchain's releases.

langchain-core==1.4.1

Changes since langchain-core==1.4.0

release(core): 1.4.1 (#37922) fix(core): remove Bedrock prevalidation from load (#37909) docs(core): expand and link ModelProfile docstrings (#37904) release(anthropic): 1.4.4 (#37757) chore(core): bump uuid-utils to 0.16.0 (#37699) chore(infra): bump langchain-tests floor to 1.1.9 (#37610) release(standard-tests): 1.1.9 (#37609) chore: bump idna from 3.11 to 3.15 in /libs/core (#37539) ci(infra): harden Dependabot version-bound preservation (#37510) hotfix: bump lockfiles (#37508) docs(core): note override for _get_ls_params (#37503) chore(core,langchain,openai): refresh stale OpenAI model references (#37487) chore: bump langsmith from 0.7.31 to 0.8.0 in /libs/core (#37395) fix(core): accept Serializable constructor-envelope wire shape in _convert_to_message (#37456) fix(core): preserve chunk additional_kwargs across v3 stream assembly (#37435) fix(core): preserve reasoning blocks alongside tool_call in v3 stream (#37434) chore: bump jupyter-server from 2.17.0 to 2.18.0 in /libs/core (#37354) chore: bump mistune from 3.1.4 to 3.2.1 in /libs/core (#37353)

langchain-openai==1.4.1

Changes since langchain-openai==1.4.0

release(openai): 1.4.1 (#39045) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(openai): correct gpt-5.3-chat-latest profile (#39009)

langchain-perplexity==1.4.1

Changes since langchain-perplexity==1.4.0

release(perplexity): 1.4.1 (#39826) fix(perplexity): include type="message" on Responses input items (#39774) fix(perplexity): preserve caller extra_body (#39203) chore: bump pillow from 12.2.0 to 12.3.0 in /libs/partners/perplexity (#38991) chore(deps): refresh lockfiles (#38746) fix(perplexity): use supported Responses API model (#38337) chore: bump vcrpy from 8.1.1 to 8.2.1 in /libs/partners/perplexity (#38290) chore: bump langsmith from 0.8.5 to 0.8.18 in /libs/partners/perplexity (#38289) docs: refresh README installation and resources (#38119) release(core): 1.4.7 (#38111) fix(core,partners): rename package version trace metadata (#38110) style(core,langchain,langchain-classic,partners): replace double backticks in docstrings (#38095) release(core): 1.4.6 (#38061) feat(core,partners): add package version tracking to tracing metadata (#35295) chore(infra): bump mypy to 2.1 and unify type-check config across the monorepo (#36470) feat(standard-tests): validate tool call chunks during streaming (#34707) chore(partners): bump locks (#38052)

... (truncated)

Commits

• 5c1f282 release(langchain): 1.4.1 (#40498)
• 86f58e3 chore(model-profiles): refresh model profile data (#40500)
• c01de7f fix(langchain): preserve open MCP object arguments (#40414)
• 8831544 chore(model-profiles): refresh model profile data (#40452)
• 41d3572 fix(openai): support GPT-6 request constraints (#40443)
• 4492ad7 chore(model-profiles): refresh model profile data (#40436)
• 15b5f57 chore(model-profiles): refresh model profile data (#40416)
• 348c9dc release(core): 1.6.3 (#40407)
• e0e1557 feat(core): Allow model name and provider tracing metadata override based on ...
• 67ee6cb chore(model-profiles): refresh model profile data (#40399)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore <dependency name> major version will close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself)
• @dependabot ignore <dependency name> minor version will close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself)
• @dependabot ignore <dependency name> will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself)
• @dependabot unignore <dependency name> will remove all of the ignore conditions of the specified dependency
• @dependabot unignore <dependency name> <ignore condition> will remove the ignore condition of the specified dependency and ignore conditions