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Bumps the pip group with 3 updates in the /api directory: filelock, urllib3 and virtualenv.

Updates filelock from 3.16.0 to 3.20.3

Release notes

Sourced from filelock's releases.

3.20.3

What's Changed

Full Changelog: tox-dev/filelock@3.20.2...3.20.3

3.20.2

What's Changed

New Contributors

Full Changelog: tox-dev/filelock@3.20.1...3.20.2

3.20.1

What's Changed

Full Changelog: tox-dev/filelock@3.20.0...3.20.1

3.20.0

What's Changed

New Contributors

Full Changelog: tox-dev/filelock@3.19.1...3.20.0

3.19.1

What's Changed

... (truncated)

Commits

Updates urllib3 from 2.5.0 to 2.6.3

Release notes

Sourced from urllib3's releases.

2.6.3

🚀 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.

Changes

2.6.2

🚀 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.

Changes

  • Fixed HTTPResponse.read_chunked() to properly handle leftover data in the decoder's buffer when reading compressed chunked responses. (urllib3/urllib3#3734)

2.6.1

🚀 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.

Changes

  • Restore previously removed HTTPResponse.getheaders() and HTTPResponse.getheader() methods. (#3731)

2.6.0

🚀 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

  • Fixed a security issue where streaming API could improperly handle highly compressed HTTP content ("decompression bombs") 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 @​Cycloctane, 8.9 High, GHSA-2xpw-w6gg-jr37)
  • Fixed a security issue where an attacker could compose an HTTP response with virtually unlimited links in the Content-Encoding 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 @​illia-v, 8.9 High, GHSA-gm62-xv2j-4w53)

[!IMPORTANT]

  • If urllib3 is not installed with the optional urllib3[brotli] 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 urllib3[brotli] to install a compatible Brotli package automatically.

... (truncated)

Changelog

Sourced from urllib3's changelog.

2.6.3 (2026-01-07)

  • Fixed a high-severity security issue where decompression-bomb safeguards of the streaming API were bypassed when HTTP redirects were followed. (GHSA-38jv-5279-wg99 <https://github.com/urllib3/urllib3/security/advisories/GHSA-38jv-5279-wg99>__)
  • Started treating Retry-After times greater than 6 hours as 6 hours by default. ([#3743](https://github.com/urllib3/urllib3/issues/3743) <https://github.com/urllib3/urllib3/issues/3743>__)
  • Fixed urllib3.connection.VerifiedHTTPSConnection on Emscripten. ([#3752](https://github.com/urllib3/urllib3/issues/3752) <https://github.com/urllib3/urllib3/issues/3752>__)

2.6.2 (2025-12-11)

  • Fixed HTTPResponse.read_chunked() to properly handle leftover data in the decoder's buffer when reading compressed chunked responses. ([#3734](https://github.com/urllib3/urllib3/issues/3734) <https://github.com/urllib3/urllib3/issues/3734>__)

2.6.1 (2025-12-08)

  • Restore previously removed HTTPResponse.getheaders() and HTTPResponse.getheader() methods. ([#3731](https://github.com/urllib3/urllib3/issues/3731) <https://github.com/urllib3/urllib3/issues/3731>__)

2.6.0 (2025-12-05)

Security

  • Fixed a security issue where streaming API could improperly handle highly compressed HTTP content ("decompression bombs") 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. (GHSA-2xpw-w6gg-jr37 <https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37>__)
  • Fixed a security issue where an attacker could compose an HTTP response with virtually unlimited links in the Content-Encoding 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. (GHSA-gm62-xv2j-4w53 <https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53>__)

.. caution::

  • If urllib3 is not installed with the optional urllib3[brotli] 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

... (truncated)

Commits
  • 0248277 Release 2.6.3
  • 8864ac4 Merge commit from fork
  • 70cecb2 Fix Scorecard issues related to vulnerable dev dependencies (#3755)
  • 41f249a Move "v2.0 Migration Guide" to the end of the table of contents (#3747)
  • fd4dffd Patch VerifiedHTTPSConnection for Emscripten (#3752)
  • 13f0bfd Handle massive values in Retry-After when calculating time to sleep for (#3743)
  • 8c480bf Bump actions/upload-artifact from 5.0.0 to 6.0.0 (#3748)
  • 4b40616 Bump actions/cache from 4.3.0 to 5.0.1 (#3750)
  • 82b8479 Bump actions/download-artifact from 6.0.0 to 7.0.0 (#3749)
  • 34284cb Mention experimental features in the security policy (#3746)
  • Additional commits viewable in compare view

Updates virtualenv from 20.26.6 to 20.36.1

Release notes

Sourced from virtualenv's releases.

20.36.1

What's Changed

Full Changelog: pypa/virtualenv@20.36.0...20.36.1

20.36.0

What's Changed

New Contributors

Full Changelog: pypa/virtualenv@20.35.3...20.36.0

20.35.4

What's Changed

New Contributors

Full Changelog: pypa/virtualenv@20.35.3...20.35.4

20.35.3

... (truncated)

Changelog

Sourced from virtualenv's changelog.

v20.36.1 (2026-01-09)

Bugfixes - 20.36.1

- Fix TOCTOU vulnerabilities in app_data and lock directory creation that could be exploited via symlink attacks - reported by :user:`tsigouris007`, fixed by :user:`gaborbernat`. (:issue:`3013`)

v20.36.0 (2026-01-07)

Features - 20.36.0

  • Add support for PEP 440 version specifiers in the --python flag. Users can now specify Python versions using operators like >=, <=, ~=, etc. For example: virtualenv --python=">=3.12" myenv . (:issue:2994`)

v20.35.4 (2025-10-28)

Bugfixes - 20.35.4

- Fix race condition in ``_virtualenv.py`` when file is overwritten during import, preventing ``NameError`` when ``_DISTUTILS_PATCH`` is accessed - by :user:`gracetyy`. (:issue:`2969`)
- Upgrade embedded wheels:
  • pip to 25.3 from 25.2 (:issue:2989)

v20.35.3 (2025-10-10)

Bugfixes - 20.35.3

  • Accept RuntimeError in test_too_many_open_files, by :user:esafak (:issue:2935)

v20.35.2 (2025-10-10)

Bugfixes - 20.35.2

- Revert out changes related to the extraction of the discovery module - by :user:`gaborbernat`. (:issue:`2978`)

v20.35.1 (2025-10-09)

Bugfixes - 20.35.1

  • Patch get_interpreter to handle missing cache and app_data - by :user:esafak (:issue:2972)
  • Fix backwards incompatible changes to PythonInfo - by :user:gaborbernat. (:issue:2975)

v20.35.0 (2025-10-08)

Features - 20.35.0

... (truncated)

Commits
  • d0ad11d release 20.36.1
  • dec4cec Merge pull request #3013 from gaborbernat/fix-sec
  • 5fe5d38 release 20.36.0 (#3011)
  • 9719376 release 20.36.0
  • 0276db6 Add support for PEP 440 version specifiers in the --python flag. (#3008)
  • 4f900c2 Fix Interpreter discovery bug wrt. Microsoft Store shortcut using Latin-1 (#3...
  • 13afcc6 fix: resolve EncodingWarning in tox upgrade environment (#3007)
  • 31b5d31 [pre-commit.ci] pre-commit autoupdate (#2997)
  • 7c28422 fix: update filelock dependency version to 3.20.1 to fix CVE CVE-2025-68146 (...
  • 365628c test_too_many_open_files: assert on errno.EMFILE instead of strerror (#3001)
  • Additional commits viewable in compare view

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Bumps the pip group with 3 updates in the /api directory: [filelock](https://github.com/tox-dev/py-filelock), [urllib3](https://github.com/urllib3/urllib3) and [virtualenv](https://github.com/pypa/virtualenv).


Updates `filelock` from 3.16.0 to 3.20.3
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/filelock/blob/main/docs/changelog.rst)
- [Commits](tox-dev/filelock@3.16.0...3.20.3)

Updates `urllib3` from 2.5.0 to 2.6.3
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.5.0...2.6.3)

Updates `virtualenv` from 20.26.6 to 20.36.1
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.26.6...20.36.1)

---
updated-dependencies:
- dependency-name: filelock
  dependency-version: 3.20.3
  dependency-type: indirect
  dependency-group: pip
- dependency-name: urllib3
  dependency-version: 2.6.3
  dependency-type: indirect
  dependency-group: pip
- dependency-name: virtualenv
  dependency-version: 20.36.1
  dependency-type: indirect
  dependency-group: pip
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file python Pull requests that update Python code labels Jan 16, 2026
@dependabot dependabot bot requested a review from open-dynaMIX as a code owner January 16, 2026 08:56
@dependabot dependabot bot added dependencies Pull requests that update a dependency file python Pull requests that update Python code labels Jan 16, 2026
@open-dynaMIX open-dynaMIX merged commit 5e02e5f into main Jan 16, 2026
12 checks passed
@open-dynaMIX open-dynaMIX deleted the dependabot/pip/api/pip-8369fdb47d branch January 16, 2026 09:03
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