Bump urllib3 from 2.6.3 to 2.7.0

[dependabot]

Bumps urllib3 from 2.6.3 to 2.7.0.

Release notes

Sourced from urllib3's releases.

2.7.0

🚀 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 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 please consider contributing financially to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.

Thank you for your support.

Security

Addressed high-severity security issues. Impact was limited to specific use cases detailed in the accompanying advisories; overall user exposure was estimated to be marginal.

• Decompression-bomb safeguards of the streaming API were bypassed:

  1. When HTTPResponse.drain_conn() was called after the response had been read and decompressed partially. (Reported by @​Cycloctane)
  2. During the second HTTPResponse.read(amt=N) or HTTPResponse.stream(amt=N) call when the response was decompressed using the official Brotli library. (Reported by @​kimkou2024)

  See GHSA-mf9v-mfxr-j63j for details.

• HTTP pools created using ProxyManager.connection_from_url did not strip sensitive headers specified in Retry.remove_headers_on_redirect when redirecting to a different host. (GHSA-qccp-gfcp-xxvc reported by @​christos-spearbit)

Deprecations and Removals

• Used FutureWarning instead of DeprecationWarning for better visibility of existing deprecation notices. Rescheduled the removal of deprecated features to version 3.0. (urllib3/urllib3#3764)
• Removed support for end-of-life Python 3.9. (urllib3/urllib3#3720)
• Removed support for end-of-life PyPy3.10. (urllib3/urllib3#4979)
• Bumped the minimum supported pyOpenSSL version to 19.0.0. (urllib3/urllib3#3777)

Bugfixes

• Fixed a bug where HTTPResponse.read(amt=None) was ignoring decompressed data buffered from previous partial reads. (urllib3/urllib3#3636)
• Fixed a bug where HTTPResponse.read() could cache only part of the response after a partial read when cache_content=True. (urllib3/urllib3#4967)
• Fixed HTTPResponse.stream() and HTTPResponse.read_chunked() to handle amt=0. (urllib3/urllib3#3793)
• Updated _TYPE_BODY type alias to include missing Iterable[str], matching the documented and runtime behavior of chunked request bodies. (urllib3/urllib3#3798)
• Fixed LocationParseError when paths resembling schemeless URIs were passed to HTTPConnectionPool.urlopen(). (urllib3/urllib3#3352)
• Fixed BaseHTTPResponse.readinto() type annotation to accept memoryview in addition to bytearray, matching the io.RawIOBase.readinto contract and enabling use with io.BufferedReader without type errors. (urllib3/urllib3#3764)

Changelog

Sourced from urllib3's changelog.

2.7.0 (2026-05-07)

Security

Addressed high-severity security issues. Impact was limited to specific use cases detailed in the accompanying advisories; overall user exposure was estimated to be marginal.

• Decompression-bomb safeguards of the streaming API were bypassed:

  1. When HTTPResponse.drain_conn() was called after the response had been read and decompressed partially.
  2. During the second HTTPResponse.read(amt=N) or HTTPResponse.stream(amt=N) call when the response was decompressed using the official Brotli <https://pypi.org/project/brotli/>__ library.

  See GHSA-mf9v-mfxr-j63j <https://github.com/urllib3/urllib3/security/advisories/GHSA-mf9v-mfxr-j63j>__ for details.

• HTTP pools created using ProxyManager.connection_from_url did not strip sensitive headers specified in Retry.remove_headers_on_redirect when redirecting to a different host. (GHSA-qccp-gfcp-xxvc <https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc>__)

Deprecations and Removals

• Used FutureWarning instead of DeprecationWarning for better visibility of existing deprecation notices. Rescheduled the removal of deprecated features to version 3.0. ([#3764](https://github.com/urllib3/urllib3/issues/3764) <https://github.com/urllib3/urllib3/issues/3764>__)
• Removed support for end-of-life Python 3.9. ([#3720](https://github.com/urllib3/urllib3/issues/3720) <https://github.com/urllib3/urllib3/issues/3720>__)
• Removed support for end-of-life PyPy3.10. ([#4979](https://github.com/urllib3/urllib3/issues/4979) <https://github.com/urllib3/urllib3/issues/4979>__)
• Bumped the minimum supported pyOpenSSL version to 19.0.0. ([#3777](https://github.com/urllib3/urllib3/issues/3777) <https://github.com/urllib3/urllib3/issues/3777>__)

Bugfixes

• Fixed a bug where HTTPResponse.read(amt=None) was ignoring decompressed data buffered from previous partial reads. ([#3636](https://github.com/urllib3/urllib3/issues/3636) <https://github.com/urllib3/urllib3/issues/3636>__)
• Fixed a bug where HTTPResponse.read() could cache only part of the response after a partial read when cache_content=True.

... (truncated)

Commits

• 9a950b9 Release 2.7.0
• 5ec0de4 Merge commit from fork
• 2bdcc44 Merge commit from fork
• f45b0df Fix a misleading example for ProxyManager (#4970)
• 577193c Switch to nightly PyPy3.11 in CI for now (#4984)
• e90af45 Avoid infinite loop in HTTPResponse.read_chunked when amt=0 (#4974)
• 67ed74f Bump dev dependencies (#4972)
• 3abd481 Upgrade mypy to version 1.20.2 (#4978)
• 2b8725d Drop support for EOL PyPy3.10 (#4979)
• 2944b2a Upgrade setup-chrome and setup-firefox to fix warnings (#4973)
• Additional commits viewable in compare view

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.92%. Comparing base (7d534ab) to head (2b280d5).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #12490   +/-   ##
=======================================
  Coverage   98.92%   98.92%           
=======================================
  Files         134      134           
  Lines       46750    46750           
  Branches     2429     2429           
=======================================
  Hits        46248    46248           
  Misses        373      373           
  Partials      129      129           

Flag	Coverage Δ
CI-GHA	98.98% <ø> (ø)
OS-Linux	98.72% <ø> (-0.01%)	⬇️
OS-Windows	96.98% <ø> (ø)
OS-macOS	97.89% <ø> (ø)
Py-3.10.11	97.39% <ø> (-0.01%)	⬇️
Py-3.10.20	97.86% <ø> (-0.01%)	⬇️
Py-3.11.15	98.11% <ø> (ø)
Py-3.11.9	97.65% <ø> (ø)
Py-3.12.10	97.74% <ø> (+<0.01%)	⬆️
Py-3.12.13	98.20% <ø> (-0.01%)	⬇️
Py-3.13.13	98.45% <ø> (-0.01%)	⬇️
Py-3.14.4	98.50% <ø> (+<0.01%)	⬆️
Py-3.14.4t	97.51% <ø> (-0.01%)	⬇️
Py-pypy3.11.15-7.3.21	97.35% <ø> (-0.01%)	⬇️
VM-macos	97.89% <ø> (ø)
VM-ubuntu	98.72% <ø> (-0.01%)	⬇️
VM-windows	96.98% <ø> (ø)
cython-coverage	38.07% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

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[codspeed-hq]

Merging this PR will not alter performance

✅ 67 untouched benchmarks
⏩ 4 skipped benchmarks¹

---

_{Comparing dependabot/pip/urllib3-2.7.0 (2b280d5) with master (7d534ab)}

Footnotes

1. 4 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩