Bump the pip group across 1 directory with 4 updates

[dependabot]

Bumps the pip group with 4 updates in the / directory: certifi, dnspython, lxml and urllib3.

Updates certifi from 2023.7.22 to 2024.7.4

Commits

• bd81538 2024.07.04 (#295)
• 06a2cbf Bump peter-evans/create-pull-request from 6.0.5 to 6.1.0 (#294)
• 13bba02 Bump actions/checkout from 4.1.6 to 4.1.7 (#293)
• e8abcd0 Bump pypa/gh-action-pypi-publish from 1.8.14 to 1.9.0 (#292)
• 124f4ad 2024.06.02 (#291)
• c2196ce --- (#290)
• fefdeec Bump actions/checkout from 4.1.4 to 4.1.5 (#289)
• 3c5fb15 Bump actions/download-artifact from 4.1.6 to 4.1.7 (#286)
• 4a9569a Bump actions/checkout from 4.1.2 to 4.1.4 (#287)
• 1fc8086 Bump peter-evans/create-pull-request from 6.0.4 to 6.0.5 (#288)
• Additional commits viewable in compare view

Updates dnspython from 2.2.1 to 2.6.1

Release notes

Sourced from dnspython's releases.

dnspython 2.6.1

See What's New for details.

This is a bug fix release for 2.6.0 where the "TuDoor" fix erroneously suppressed legitimate Truncated exceptions. This caused the stub resolver to timeout instead of failing over to TCP when a legitimate truncated response was received over UDP.

This release addresses the potential DoS issue discussed in the "TuDoor" paper (CVE-2023-29483). The dnspython stub resolver is vulnerable to a potential DoS if a bad-in-some-way response from the right address and port forged by an attacker arrives before a legitimate one on the UDP port dnspython is using for that query. In this situation, dnspython might switch to querying another resolver or give up entirely, possibly denying service for that resolution. This release addresses the issue by adopting the recommended mitigation, which is ignoring the bad packets and continuing to listen for a legitimate response until the timeout for the query has expired.

Thank you to all the contributors to this release, and, as usual, thanks to my co-maintainers: Tomáš Křížek, Petr Špaček, and Brian Wellington.

dnspython 2.6.0

See What's New for details.

This release addresses the potential DoS issue discussed in the "TuDoor" paper (CVE-2023-29483). The dnspython stub resolver is vulnerable to a potential DoS if a bad-in-some-way response from the right address and port forged by an attacker arrives before a legitimate one on the UDP port dnspython is using for that query. In this situation, dnspython might switch to querying another resolver or give up entirely, possibly denying service for that resolution. This release addresses the issue by adopting the recommended mitigation, which is ignoring the bad packets and continuing to listen for a legitimate response until the timeout for the query has expired.

Thank you to all the contributors to this release, and, as usual, thanks to my co-maintainers: Tomáš Křížek, Petr Špaček, and Brian Wellington.

dnspython 2.5.0

See the What's New page for a summary of this release.

Thanks to all the contributors, and, as usual, thanks to my co-maintainers: Tomáš Křížek, Petr Špaček, and Brian Wellington.

dnspython 2.4.2

This is a bug fix release, see the What's New page in the documentation for a summary.

Thanks to the people who reported the bugs and, as usual, thanks to my co-maintainers: Tomáš Křížek, Petr Špaček, and Brian Wellington.

Changelog

Sourced from dnspython's changelog.

2.6.1

• The Tudoor fix ate legitimate Truncated exceptions, preventing the resolver from failing over to TCP and causing the query to timeout #1053.

2.6.0

• As mentioned in the "TuDoor" paper and the associated CVE-2023-29483, the dnspython stub resolver is vulnerable to a potential DoS if a bad-in-some-way response from the right address and port forged by an attacker arrives before a legitimate one on the UDP port dnspython is using for that query.

  This release addresses the issue by adopting the recommended mitigation, which is ignoring the bad packets and continuing to listen for a legitimate response until the timeout for the query has expired.

• Added support for the NSID EDNS option.

• Dnspython now looks for version metadata for optional packages and will not use them if they are too old. This prevents possible exceptions when a feature like DoH is not desired in dnspython, but an old httpx is installed along with dnspython for some other purpose.

• The DoHNameserver class now allows GET to be used instead of the default POST, and also passes source and source_port correctly to the underlying query methods.

2.5.0

• Dnspython now uses hatchling for builds.

• Asynchronous destinationless sockets now work on Windows.

• Cython is no longer supported due to various typing issues.

• Dnspython now explicitly canonicalizes IPv4 and IPv6 addresses. Previously it was possible for non-canonical IPv6 forms to be stored in a AAAA address, which would work correctly but possibly cause problmes if the address were used as a key in a dictionary.

• The number of messages in a section can be retrieved with section_count().

• Truncation preferences for messages can be specified.

• The length of a message can be automatically prepended when rendering.

... (truncated)

Commits

• 0a742b9 update CI
• 0ea5ad0 The Tudoor fix should not eat valid Truncated exceptions #1053 (#1054)
• f12d398 2.6.1 version prep
• cecb853 Further improve CVE fix coverage to 100% for sync and async.
• 7952e31 test IgnoreErrors
• e093299 For the Tudoor fix, we also need the UDP nameserver to ignore_unexpected.
• 3af9f78 2.6.0 versioning
• ca63d95 Require cryptography >=41 instead of 42.
• 902cbf3 Create CODE_OF_CONDUCT.md
• ed9795f github contributing and pull request template
• Additional commits viewable in compare view

Updates lxml from 4.9.1 to 6.1.0

Release notes

Sourced from lxml's releases.

lxml-6.1.0

No release notes provided.

lxml-6.0.4

No release notes provided.

lxml-6.0.3

No release notes provided.

lxml-6.0.2

No release notes provided.

lxml-6.0.1

No release notes provided.

lxml-6.0.0

No release notes provided.

lxml-5.4.0

5.4.0 (2025-04-22)

Bugs fixed

• LP#2107279: Binary wheels use libxml2 2.13.8 and libxslt 1.1.43 to resolve several CVEs. (Binary wheels for Windows continue to use a patched libxml2 2.11.9 and libxslt 1.1.39.) Issue found by Anatoly Katyushin, see https://bugs.launchpad.net/lxml/+bug/2107279

lxml-5.3.2

No release notes provided.

lxml-5.3.1

No release notes provided.

lxml-5.3.0

No release notes provided.

lxml-5.2.2

5.2.2 (2024-05-12)

Bugs fixed

• GH#417: The test_feed_parser test could fail if lxml_html_clean was not installed. It is now skipped in that case.

• LP#2059910: The minimum CPU architecture for the Linux x86 binary wheels was set back to "core2", without SSE 4.2.

... (truncated)

Changelog

Sourced from lxml's changelog.

6.1.0 (2026-04-17)

This release fixes a possible external entity injection (XXE) vulnerability in iterparse() and the ETCompatXMLParser.

Features added

• GH#486: The HTML ARIA accessibility attributes were added to the set of safe attributes in lxml.html.defs. This allows lxml_html_clean to pass them through. Patch by oomsveta.

• The default chunk size for reading from file-likes in iterparse() is now configurable with a new chunk_size argument.

Bugs fixed

• LP#2146291: The resolve_entities option was still set to True for iterparse and ETCompatXMLParser, allowing for external entity injection (XXE) when using these parsers without setting this option explicitly. The default was now changed to 'internal' only (as for the normal XML and HTML parsers since lxml 5.0). Issue found by Sihao Qiu as CVE-2026-41066.

6.0.4 (2026-04-12)

Bugs fixed

• LP#2148019: Spurious MemoryError during namespace cleanup.

6.0.3 (2026-04-09)

Bugs fixed

• Several out of memory error cases now raise MemoryError that were not handled before.

• Slicing with large step values (outside of +/- sys.maxsize) could trigger undefined C behaviour.

• LP#2125399: Some failing tests were fixed or disabled in PyPy.

• LP#2138421: Memory leak in error cases when setting the public_id or system_url of a document.

... (truncated)

Commits

• 43722f4 Update changelog.
• 8747040 Name version of option change in docstring.
• 6c36e6c Fix pypistats URL in download statistics script.
• c7d76d6 Change security policy to point to Github security advisories.
• 378ccf8 Update project income report.
• 315270b Docs: Reduce TOC depth of package pages and move module contents first.
• 6dbba7f Docs: Show current year in copyright line.
• e4385bf Update project income report.
• 5bed1e1 Validate file hashes in release download script.
• c13ee10 Prepare release of 6.1.0.
• Additional commits viewable in compare view

Updates urllib3 from 1.26.11 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

• Fixed a security issue where decompression-bomb safeguards of the streaming API were bypassed when HTTP redirects were followed. (CVE-2026-21441 reported by @​D47A, 8.9 High, GHSA-38jv-5279-wg99)
• Started treating Retry-After times greater than 6 hours as 6 hours by default. (urllib3/urllib3#3743)
• Fixed urllib3.connection.VerifiedHTTPSConnection on Emscripten. (urllib3/urllib3#3752)

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