Bump werkzeug from 3.1.8 to 3.1.9

[dependabot]

Bumps werkzeug from 3.1.8 to 3.1.9.

Release notes

Sourced from werkzeug's releases.

3.1.9

This is the Werkzeug 3.1.9 security fix release, which fixes security issues and bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.9/ Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-9 Milestone: https://github.com/pallets/werkzeug/milestone/46?closed=1

• safe_join on Windows does not allow special devices names with empty ADS markers on NTFS. GHSA-g6x2-hccm-hh4m
• ProfilerMiddleware uses profiling.tracing on Python 3.15. #3207
• uri_to_iri and iri_to_uri preserve empty username, password, and port 0. #3189
• Improve performance of parse_options_header. #3231
• Improve performance of parse_etags. #3231
• Improve performance of parse_cookie. #3231
• get_host also checks that the port is in the valid range. #3236
• The int URL converter returns a 404 instead of 500 error when the value is longer than sys.get_int_max_str_digits(). #3237
• Improve debugger PIN generation from cgroup data inside Podman. #3245
• Authorization parsing basic auth disallows non-base64 characters. #3248
• application/x-www-form-urlencoded form data is no longer limited to max_form_memory_size, only max_content_length. #3251
• LimitedStream.readinto does not resize the buffer when it reads less than the remaining size. #3253
• Rules with 10 or more converters in a single part assign matched values correctly. #3254
• The invalid Range suffix length -0 is no longer accepted. #3255

Changelog

Sourced from werkzeug's changelog.

Version 3.1.9

Released 2026-09-27

• safe_join on Windows does not allow special devices names with empty ADS markers on NTFS. :ghsa:g6x2-hccm-hh4m
• ProfilerMiddleware uses profiling.tracing on Python 3.15. :issue:3207
• uri_to_iri and iri_to_uri preserve empty username, password, and port 0. :issue:3189
• Improve performance of parse_options_header. :pr:3231
• Improve performance of parse_etags. :pr:3231
• Improve performance of parse_cookie. :pr:3231
• get_host also checks that the port is in the valid range. :pr:3236
• The int URL converter returns a 404 instead of 500 error when the value is longer than sys.get_int_max_str_digits(). :issue:3237
• Improve debugger PIN generation from cgroup data inside Podman. :issue:3245
• Authorization parsing basic auth disallows non-base64 characters. :pr:3248
• application/x-www-form-urlencoded form data is no longer limited to max_form_memory_size, only max_content_length. :pr:3251
• LimitedStream.readinto does not resize the buffer when it reads less than the remaining size. :pr:3253
• Rules with 10 or more converters in a single part assign matched values correctly. :pr:3254
• The invalid Range suffix length -0 is no longer accepted. :pr:3255

Commits

• 6604c3b release version 3.1.9
• a78b30a update dependencies
• 8d77320 disallow special name with ads (#3309)
• b2a2c09 disallow special name with ads
• 4efac9d add links
• 400c23e Allow flit_core 4.x (#3261)
• 7132a19 allow flit_core 4
• 6fba87c only accept ASCII digits
• 263f5ca disallow range -0 (#3255)
• 0c419f9 disallow range -0
• Additional commits viewable in compare view

[ons-eq-team]

Benchmark Results

Percentile Averages:
50th: 88ms
90th: 369ms
95th: 629ms
99th: 1286ms
99.9th: 2221ms
GETs (99th): 1462ms
POSTs (99th): 1082ms

PDF: 12000ms
Session: 8100ms

Total Requests: 62,946
Total Failures: 0
Error Percentage: 0.0%