chore(deps): bump the uv group across 2 directories with 8 updates

[dependabot]

Bumps the uv group with 7 updates in the /backend directory:

Package	From	To
litellm	1.85.0	1.88.6
pypdf	6.16.1	6.19.0
fsspec	2026.4.0	2026.6.0
langgraph-sdk	0.3.15	0.4.4
multidict	6.7.1	6.9.1
pyjwt	2.13.0	2.15.0
urllib3	2.7.0	2.8.0

Bumps the uv group with 3 updates in the /marker_service directory: fsspec, urllib3 and virtualenv.

Updates litellm from 1.85.0 to 1.88.6

Release notes

Sourced from litellm's releases.

v1.88.6

Verify Docker Image Signature

All LiteLLM Docker images are signed with cosign. Every release is signed with the same key introduced in commit 0112e53.

Verify using the pinned commit hash (recommended):

A commit hash is cryptographically immutable, so this is the strongest way to ensure you are using the original signing key:

cosign verify \
  --key https://raw.githubusercontent.com/BerriAI/litellm/0112e53046018d726492c814b3644b7d376029d0/cosign.pub \
  ghcr.io/berriai/litellm:v1.88.6

Verify using the release tag (convenience):

Tags are protected in this repository and resolve to the same key. This option is easier to read but relies on tag protection rules:

cosign verify \
  --key https://raw.githubusercontent.com/BerriAI/litellm/v1.88.6/cosign.pub \
  ghcr.io/berriai/litellm:v1.88.6

Expected output:

The following checks were performed on each of these signatures:
  - The cosign claims were validated
  - The signatures were verified against the specified public key

---

What's Changed

• chore(release): backport proxy request-handling fixes and refresh runtime deps for 1.88.6 by @​yuneng-berri in BerriAI/litellm#36314

Full Changelog: BerriAI/litellm@v1.88.5...v1.88.6

Commits

• b504a0e Merge pull request #36314 from BerriAI/litellm_backport_1_88_x_bp-188x-0807sec
• e96c272 fix(deps): raise aiohttp floor to 3.14.2 to clear pooled-connection timeouts
• eadbcc7 build(deps): update ddtrace to the 4.x line
• 49ea7fa chore(deps): bump setuptools to 83.0.0
• ba818e2 chore(deps): bump langgraph-checkpoint to 4.1.1
• 262448e chore(deps): bump h2 to 4.4.1
• 5af1b16 chore(deps): bump langsmith to 0.8.18
• 51f17d7 chore(deps): bump httplib2 to 0.32.0
• f9b2839 chore(deps): bump soupsieve to 2.8.4
• d3317f2 chore(deps): bump gitpython to 3.1.58
• Additional commits viewable in compare view

Updates pypdf from 6.16.1 to 6.19.0

Release notes

Sourced from pypdf's releases.

Version 6.19.0, 2026-09-16

What's new

Security (SEC)

• Limit size of alphabetical page labels (#4096) by @​stefan6419846

Deprecations (DEP)

• Replace PdfWriter method add_js (#3979) by @​j-t-1

Performance Improvements (PI)

• Move static value out of loop body for appearance stream data (#4087) by @​stefan6419846
• Reduce number of full data lookups for attachment mapping API (#4081) by @​stefan6419846

Bug Fixes (BUG)

• Do not copy unrelated pages when appending pages with non-terminal fields (#4078) by @​anandghegde
• Use page reference for existing internal link targets (#4076) by @​r-kamei
• Arabic-Indic digits are reversed during text extraction (#4077) by @​Syamjith-NK
• Parse a string rect for add_uri into a rectangle (#4074) by @​RavSinghChandan

Full Changelog

Version 6.18.1, 2026-09-11

What's new

Security (SEC)

• Further restrict FlateDecode recovery (#4073) by @​stefan6419846
• Limit entry count for TrueType and Type1 font /Widths (#4072) by @​stefan6419846
• Limit allowed length of tokens in parse_bfchar (#4071) by @​stefan6419846

Bug Fixes (BUG)

• Use current text matrix for visitor_text (#4062) by @​r-kamei
• Repeat the letter for /S /A and /S /a page labels past Z (#4065) by @​youdie006
• Use font color for FreeText default appearance (#4051) by @​Yuki9814

Robustness (ROB)

• Fix compatibility with fonttools < 4.58.0 (#4050, #4059) by @​MeggyCal and @​stefan6419846

Documentation (DOC)

• Use combined matrix in visitor examples (#4066) by @​r-kamei

Full Changelog

Version 6.18.0, 2026-09-07

What's new

Please note that this release requires users which previously overwrote the default limits to migrate to the new approach: Docs

In short:

• Use apply_configuration as a context manager to temporarily overwrite configuration values.

... (truncated)

Changelog

Sourced from pypdf's changelog.

Version 6.19.0, 2026-09-16

Security (SEC)

• Limit size of alphabetical page labels (#4096)

Deprecations (DEP)

• Replace PdfWriter method add_js (#3979)

Performance Improvements (PI)

• Move static value out of loop body for appearance stream data (#4087)
• Reduce number of full data lookups for attachment mapping API (#4081)

Bug Fixes (BUG)

• Do not copy unrelated pages when appending pages with non-terminal fields (#4078)
• Use page reference for existing internal link targets (#4076)
• Arabic-Indic digits are reversed during text extraction (#4077)
• Parse a string rect for add_uri into a rectangle (#4074)

Full Changelog

Version 6.18.1, 2026-09-11

Security (SEC)

• Further restrict FlateDecode recovery (#4073)
• Limit entry count for TrueType and Type1 font /Widths (#4072)
• Limit allowed length of tokens in parse_bfchar (#4071)

Bug Fixes (BUG)

• Use current text matrix for visitor_text (#4062)
• Repeat the letter for /S /A and /S /a page labels past Z (#4065)
• Use font color for FreeText default appearance (#4051)

Robustness (ROB)

• Fix compatibility with fonttools < 4.58.0 (#4050, #4059)

Documentation (DOC)

• Use combined matrix in visitor examples (#4066)

Full Changelog

Version 6.18.0, 2026-09-07

Security (SEC)

• Limit allowed length of indirect object tokens (#4055)

Deprecations (DEP)

• Rework configuration value handling (#4044)

New Features (ENH)

• Draw borders and backgrounds for appearance streams and annotations (#4033)

... (truncated)

Commits

• d62cb58 REL: 6.19.0
• 0d8b5a8 SEC: Limit size of alphabetical page labels (#4096)
• 959467a PI: Move static value out of loop body for appearance stream data (#4087)
• 20822b2 DEV: Bump zizmorcore/zizmor-action from 0.6.3 to 0.6.4 (#4093)
• 25f2301 DEP: Replace PdfWriter method add_js (#3979)
• a924438 BUG: Do not copy unrelated pages when appending pages with non-terminal field...
• cf5cec2 BUG: Use page reference for existing internal link targets (#4076)
• 96d81f0 BUG: Arabic-Indic digits are reversed during text extraction (#4077)
• 2d21901 DEV: Fix Color class for latest mypy (#4082)
• 893a010 MAINT: Split PdfDocCommon._flatten (#4070)
• Additional commits viewable in compare view

Updates fsspec from 2026.4.0 to 2026.6.0

Commits

• a245700 changelog (#2049)
• 652325d Fix async cat ranges on error (#2045)
• 073aac8 Forward kwargs from cat_ranges to cat_file (#2044)
• 2818611 FTP: preserve filenames containing whitespace in _mlsd2 (#2043)
• c879384 Prevent attribute error by checking for 'forced' attribute before flushing ca...
• 71b8a6b Reflect async _walk correctly (#2040)
• 5eec9f9 Fix: Omit threading.get_ident() from cache token for async implementations ...
• 8643878 Small safety improvements (#2039)
• a1c16ab Honour simple_templates everywhere in referenceFS (#2029)
• 85facaa Fix infinite recursion in expand_path when resolving paths with glob magic ch...
• Additional commits viewable in compare view

Updates langgraph-sdk from 0.3.15 to 0.4.4

Release notes

Sourced from langgraph-sdk's releases.

langgraph-sdk==0.4.4

Changes since sdk==0.4.3

• release(sdk-py): 0.4.4 (#8738)
• Merge commit from fork
• feat: route LangSmith traces from thread streams (#8723)

langgraph-sdk==0.4.3

Changes since sdk==0.4.2

• release(sdk-py): 0.4.3 (#8657)
• feat(sdk-py): add decrypt replacement result (#8598)
• release(langgraph): 1.2.11 (#8595)
• chore(deps): bump the minor-and-patch group across 1 directory with 5 updates (#8532)
• release(checkpoint): 4.2.0 (#8563)
• chore: enforce PLC0415 in tests for the remaining packages (#8547)
• release(langgraph): 1.2.10 (#8462)
• chore(deps): bump websockets from 15.0.1 to 16.0 in /libs/sdk-py in the major group (#8253)
• fix(sdk-py): support clearing cron end_time via update(end_time=None) (#8334)
• release(langgraph): 1.2.9 (#8316)
• release(langgraph): 1.2.8 (#8292)
• chore(deps): bump websockets from 15.0.1 to 16.0 in /libs/langgraph in the major group (#8256)
• chore(deps): bump the minor-and-patch group in /libs/sdk-py with 9 updates (#8252)
• release(langgraph): 1.2.7 (#8223)
• chore(deps-dev): bump starlette from 1.0.1 to 1.3.1 in /libs/sdk-py (#8104)
• chore(deps): bump langsmith from 0.8.0 to 0.8.18 in /libs/sdk-py (#8174)
• release(langgraph): 1.2.6 (#8139)
• docs: standardize package README.md structure (#8064)
• release(langgraph): 1.2.5 (#8062)
• fix(langgraph): merge lc_versions config metadata (#8052)
• chore(deps-dev): bump starlette from 1.0.0 to 1.0.1 in /libs/sdk-py (#8006)
• chore: migrate Python type checking to ty (#8002)
• release(langgraph): 1.2.4 (#7991)
• test(sdk-py): add factory-graph integration test exercising the server factory path (#7978)
• release(langgraph): 1.2.3 (#7945)

langgraph-sdk==0.4.2

Changes since sdk==0.4.1

• release(sdk-py): 0.4.2 (#7955)
• fix(sdk-py): percent-encode thread_id in v3 stream transport default paths (#7954)

langgraph-sdk==0.4.1

Changes since sdk==0.4.0

• release(sdk-py): 0.4.1 (#7944)
• feat(sdk-py): extract stream decoders and add interleave_projections (#7935)
• feat(langgraph): add v3 streaming support to RemoteGraph (#7927)
• fix(sdk-py): make tools_agent fake model stateless (#7930)

... (truncated)

Commits

• a64414c langgraph: release 0.4.4 (#4704)
• 3a1c02f update for consistency
• 5ab2aa7 lint again
• c33e64d use list
• 4ffae60 lint + update
• 54ddde9 update
• 60c41ce update
• efd33d8 update
• 254a385 langgraph: fix drawing graph with root channel
• b20130d langgraph: fix graph drawing for self-loops
• Additional commits viewable in compare view

Updates multidict from 6.7.1 to 6.9.1

Release notes

Sourced from multidict's releases.

6.9.1

Bug fixes

• Fixed the C extension reading freed memory on free-threaded builds when a list handed to :py:meth:~multidict.MultiDict.update, :py:meth:~multidict.MultiDict.extend, :py:meth:~multidict.MultiDict.merge or the :py:class:~multidict.MultiDict and :py:class:~multidict.CIMultiDict constructors, a [key, value] item inside any iterable handed to them, or a list tested with in against :py:meth:~multidict.MultiDict.items, is changed by another thread; a call that catches the list shrinking under it now raises :py:exc:RuntimeError -- by :user:rodrigobnogueira.

  Related issues and pull requests on GitHub: #1437.

• Fixed a data race on the free-threaded build where a retired hash table's reader count used relaxed atomics, letting a lock-free get()/getone()/ __getitem__() read race a concurrent free of that table. The reader-exit decrement and the drain's free check now use release/acquire ordering instead -- by :user:asvetlov.

  Related issues and pull requests on GitHub: #1481.

• Fixed a free-threaded build bug where two threads calling update(), merge(), or __setitem__() on the same key at the same time could lose the key entirely instead of just racing on which value wins. A decref of the replaced value could transiently suspend the writer's critical section, letting a second writer for the same key observe the first writer's in-progress entry as absent and, once both settled, mistake it for a stale duplicate and delete it. Every such decref is now deferred until the writer has released its critical section, so the window can no longer open. setdefault() had an unrelated instance of the same blind spot (it could insert a duplicate rather than recognizing an in-flight key), fixed alongside it -- by :user:asvetlov.

  Related issues and pull requests on GitHub: #1483.

• Fixed a free-threaded build bug where getall() and the items()/ keys()/values() equality path could raise KeyError or report a present, never-deleted key as missing. A concurrent update()/extend()/ __setitem__() call can have its critical section transiently suspended (a decref triggering a blocking allocator call) while an entry is marked as part of its own bookkeeping; a reader landing in that window used to treat the mark as "not found" instead of "still there, in flight" -- by :user:asvetlov.

  Related issues and pull requests on GitHub:

... (truncated)

Changelog

Sourced from multidict's changelog.

6.9.1

(2026-09-21)

Bug fixes

• Fixed the C extension reading freed memory on free-threaded builds when a list handed to :py:meth:~multidict.MultiDict.update, :py:meth:~multidict.MultiDict.extend, :py:meth:~multidict.MultiDict.merge or the :py:class:~multidict.MultiDict and :py:class:~multidict.CIMultiDict constructors, a [key, value] item inside any iterable handed to them, or a list tested with in against :py:meth:~multidict.MultiDict.items, is changed by another thread; a call that catches the list shrinking under it now raises :py:exc:RuntimeError -- by :user:rodrigobnogueira.

  Related issues and pull requests on GitHub: :issue:1437.

• Fixed a data race on the free-threaded build where a retired hash table's reader count used relaxed atomics, letting a lock-free get()/getone()/ __getitem__() read race a concurrent free of that table. The reader-exit decrement and the drain's free check now use release/acquire ordering instead -- by :user:asvetlov.

  Related issues and pull requests on GitHub: :issue:1481.

• Fixed a free-threaded build bug where two threads calling update(), merge(), or __setitem__() on the same key at the same time could lose the key entirely instead of just racing on which value wins. A decref of the replaced value could transiently suspend the writer's critical section, letting a second writer for the same key observe the first writer's in-progress entry as absent and, once both settled, mistake it for a stale duplicate and delete it. Every such decref is now deferred until the writer has released its critical section, so the window can no longer open. setdefault() had an unrelated instance of the same blind spot (it could insert a duplicate rather than recognizing an in-flight key), fixed alongside it -- by :user:asvetlov.

  Related issues and pull requests on GitHub: :issue:1483.

• Fixed a free-threaded build bug where getall() and the items()/ keys()/values() equality path could raise KeyError or report a present, never-deleted key as missing. A concurrent update()/extend()/ __setitem__() call can have its critical section transiently suspended (a decref triggering a blocking allocator call) while an entry is marked as

... (truncated)

Commits

• 0a1770c Release 6.9.1 (#1504)
• d220522 Upload release assets one at a time to avoid the secondary rate limit (#1503)
• 30cd596 Stop a GIL-releasing del from segfaulting the standard C extension build ...
• d1c331a Recheck the reader gate after taking the retired list (#1502)
• b37f07c Allocate deferred decrefs in fixed-size blocks (#1501)
• 563f667 Run CodSpeed benchmarks on Python 3.14 and loop the smallest ones (#1498)
• 157c87c Cancel superseded CI runs on pull requests (#1500)
• d43adfe Drop -I from the ASan test command so PYTHONMALLOC takes effect (#1499)
• 2a68472 Stop items() iteration from reading a freed entry in CIMultiDict (#1496)
• cd528d6 Rename GHSA-54p9-h82j-f925 changelog fragment to the merged commit (#1495)
• Additional commits viewable in compare view

Updates pyjwt from 2.13.0 to 2.15.0

Release notes

Sourced from pyjwt's releases.

2.15.0

See the 2.15.0 changelog for complete release details.

2.14.0

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

Changelog

Sourced from pyjwt's changelog.

v2.15.0 <https://github.com/jpadilla/pyjwt/compare/2.14.0...2.15.0>__

Security

- Wrap recursion errors from deeply nested JWT payloads in ``DecodeError``
  instead of exposing a raw ``RecursionError``.
Added

- Support Python 3.15 by @kytta in `[#1202](https://github.com/jpadilla/pyjwt/issues/1202) <https://github.com/jpadilla/pyjwt/pull/1202>`__
Changed



JWKSetCache now stores the parsed PyJWKSet rather than the raw JWKS
payload, so a cache hit no longer re-parses every key. JWKSetCache.put()
accepts either form and raises PyJWKSetError for anything else. As a
result, PyJWKClient.get_jwk_set() returns the same PyJWKSet instance
for as long as it stays cached, rather than a freshly built one per call in
[#1208](https://github.com/jpadilla/pyjwt/issues/1208) <https://github.com/jpadilla/pyjwt/pull/1208>__
PyJWKClient.fetch_data() now raises
PyJWKClientError("The JWKS endpoint did not return a JSON object") when
the endpoint response is not a JSON object, instead of returning it for
get_jwk_set() to reject. Callers reaching the JWKS through
get_jwk_set() see the same error as before in
[#1208](https://github.com/jpadilla/pyjwt/issues/1208) <https://github.com/jpadilla/pyjwt/pull/1208>__

Fixed

- Return cached ``PyJWKSet`` values from ``PyJWKClient.get_jwk_set()`` instead
  of raising ``PyJWKClientError("The JWKS endpoint did not return a JSON
  object")``. ``JWKSetCache.put()`` documents ``PyJWKSet`` as the cached value,
  so callers pre-populating the cache to avoid a network round-trip could not
  read it back in `[#914](https://github.com/jpadilla/pyjwt/issues/914) <https://github.com/jpadilla/pyjwt/issues/914>`__ and
  `[#1208](https://github.com/jpadilla/pyjwt/issues/1208) <https://github.com/jpadilla/pyjwt/pull/1208>`__
- ``PyJWKClient.get_jwk_set()`` now caches the key set it returns, so a
  ``fetch_data()`` override that filters or transforms the JWKS is no longer
  undone by the next cache hit in
  `[#1208](https://github.com/jpadilla/pyjwt/issues/1208) <https://github.com/jpadilla/pyjwt/pull/1208>`__
- 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``.
- Reject OKP JWK private keys when their public ``x`` component does not
  match the private ``d`` component.
- Treat malformed JWK Set members as unusable keys rather than letting
  ``AttributeError`` or ``TypeError`` escape ``PyJWKSet``. A member that is not
</tr></table> 
</code></pre>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>

<li><a href="https://github.com/jpadilla/pyjwt/commit/1d41a6478e1562e68ff667fcd703356acf085f68&quot;&gt;&lt;code&gt;1d41a64&lt;/code&gt;&lt;/a> chore: prepare 2.15.0 release</li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/9bc06658f875b9b40091539140bbbdc4639161c3&quot;&gt;&lt;code&gt;9bc0665&lt;/code&gt;&lt;/a> fix: make recursive payload tests deterministic</li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/5fde08a6cf906aa7698de2d6391d88b73006b17b&quot;&gt;&lt;code&gt;5fde08a&lt;/code&gt;&lt;/a> fix: normalize recursive JWT payload errors</li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/171062d2d734315272a901100aa4b109f2fc3c19&quot;&gt;&lt;code&gt;171062d&lt;/code&gt;&lt;/a> utils: mention bytes in force_bytes type error (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1173&quot;&gt;#1173&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/c9d4d5375bf464ef363506fed9eb6e7f33217ab6&quot;&gt;&lt;code&gt;c9d4d53&lt;/code&gt;&lt;/a> docs/conf: drop duplicate 'and' from read() docstring (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1174&quot;&gt;#1174&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/2763752196113e1473b0ed7905aa6034aedfbe53&quot;&gt;&lt;code&gt;2763752&lt;/code&gt;&lt;/a> Add support for Python 3.15 (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1202&quot;&gt;#1202&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/4adcd02722f5011c60079d3978dfc167b9a8eaa5&quot;&gt;&lt;code&gt;4adcd02&lt;/code&gt;&lt;/a> Catch http.client.HTTPException in PyJWKClient.fetch_data (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1201&quot;&gt;#1201&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/9e501d993b4d3e7dba14bdb1722b1d993ac75097&quot;&gt;&lt;code&gt;9e501d9&lt;/code&gt;&lt;/a> fix: correct docstring typo in _validate_jti (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1179&quot;&gt;#1179&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/4047c44d51950ffda15f40054508d3f17c43b1e2&quot;&gt;&lt;code&gt;4047c44&lt;/code&gt;&lt;/a> docs: clarify JWK certificate member handling (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1212&quot;&gt;#1212&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/jpadilla/pyjwt/commit/f4e2b59f543cc82d46d9d69922bba59e804216b9&quot;&gt;&lt;code&gt;f4e2b59&lt;/code&gt;&lt;/a> [pre-commit.ci] pre-commit autoupdate (<a href="https://redirect.github.com/jpadilla/pyjwt/issues/1210&quot;&gt;#1210&lt;/a&gt;)&lt;/li>

<li>Additional commits viewable in <a href="https://github.com/jpadilla/pyjwt/compare/2.13.0...2.15.0&quot;&gt;compare view</a></li>

</ul>

</details>
<br />

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 fsspec from 2026.4.0 to 2026.6.0

Commits

a245700 changelog (#2049)
652325d Fix async cat ranges on error (#2045)
073aac8 Forward kwargs from cat_ranges to cat_file (#2044)
2818611 FTP: preserve filenames containing whitespace in _mlsd2 (#2043)
c879384 Prevent attribute error by checking for 'forced' attribute before flushing ca...
71b8a6b Reflect async _walk correctly (#2040)
5eec9f9 Fix: Omit threading.get_ident() from cache token for async implementations ...
8643878 Small safety improvements (#2039)
a1c16ab Honour simple_templates everywhere in referenceFS (#2029)
85facaa Fix infinite recursion in expand_path when resolving paths with glob magic ch...
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)


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