chore(deps): update dependency werkzeug to v3.1.4 [security]

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
Werkzeug (changelog)	==3.0.3 -> ==3.1.4
Werkzeug (changelog)	==2.3.8 -> ==3.1.4
Werkzeug (changelog)	==1.0.1 -> ==3.1.4
werkzeug (changelog)	==2.3.8 -> ==3.1.4
werkzeug (changelog)	==3.0.3 -> ==3.1.4

GitHub Vulnerability Alerts

CVE-2025-66221

Werkzeug's safe_join function allows path segments with Windows device names. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. send_from_directory uses safe_join to safely serve files at user-specified paths under a directory. If the application is running on Windows, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely.

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Release Notes

pallets/werkzeug (Werkzeug)

v3.1.4

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Released 2025-11-28

• safe_join on Windows does not allow special device names. This prevents reading from these when using send_from_directory. secure_filename already prevented writing to these. :ghsa:hgf8-39gv-g3f2
• The debugger pin fails after 10 attempts instead of 11. :pr:3020
• The multipart form parser handles a \r\n sequence at a chunk boundary. :issue:3065
• Improve CPU usage during Watchdog reloader. :issue:3054
• Request.json annotation is more accurate. :issue:3067
• Traceback rendering handles when the line number is beyond the available source lines. :issue:3044
• HTTPException.get_response annotation and doc better conveys the distinction between WSGI and sans-IO responses. :issue:3056

v3.1.3

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Released 2024-11-08

• Initial data passed to MultiDict and similar interfaces only accepts list, tuple, or set when passing multiple values. It had been changed to accept any Collection, but this matched types that should be treated as single values, such as bytes. :issue:2994
• When the Host header is not set and Request.host falls back to the WSGI SERVER_NAME value, if that value is an IPv6 address it is wrapped in [] to match the Host header. :issue:2993

v3.1.2

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Released 2024-11-04

• Improve type annotation for TypeConversionDict.get to allow the type parameter to be a callable. :issue:2988
• Headers does not inherit from MutableMapping, as it is does not exactly match that interface. :issue:2989

v3.1.1

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Released 2024-11-01

• Fix an issue that caused str(Request.headers) to always appear empty. :issue:2985

v3.1.0

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Released 2024-10-31

• Drop support for Python 3.8. :pr:2966

• Remove previously deprecated code. :pr:2967

• Request.max_form_memory_size defaults to 500kB instead of unlimited. Non-file form fields over this size will cause a RequestEntityTooLarge error. :issue:2964

• OrderedMultiDict and ImmutableOrderedMultiDict are deprecated. Use MultiDict and ImmutableMultiDict instead. :issue:2968

• Behavior of properties on request.cache_control and response.cache_control has been significantly adjusted.

  • Dict values are always str | None. Setting properties will convert the value to a string. Setting a property to False is equivalent to setting it to None. Getting typed properties will return None if conversion raises ValueError, rather than the string. :issue:2980
  • max_age is None if present without a value, rather than -1. :issue:2980
  • no_cache is a boolean for requests, it is True instead of "*" when present. It remains a string for responses. :issue:2980
  • max_stale is True if present without a value, rather than "*". :issue:2980
  • no_transform is a boolean. Previously it was mistakenly always None. :issue:2881
  • min_fresh is None if present without a value, rather than "*". :issue:2881
  • private is True if present without a value, rather than "*". :issue:2980
  • Added the must_understand property. :issue:2881
  • Added the stale_while_revalidate, and stale_if_error properties. :issue:2948
  • Type annotations more accurately reflect the values. :issue:2881

• Support Cookie CHIPS (Partitioned Cookies). :issue:2797

• Add 421 MisdirectedRequest HTTP exception. :issue:2850

• Increase default work factor for PBKDF2 to 1,000,000 iterations. :issue:2969

• Inline annotations for datastructures, removing stub files. :issue:2970

• MultiDict.getlist catches TypeError in addition to ValueError when doing type conversion. :issue:2976

• Implement | and |= operators for MultiDict, Headers, and CallbackDict, and disallow |= on immutable types. :issue:2977

v3.0.6

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Released 2024-10-25

• Fix how max_form_memory_size is applied when parsing large non-file fields. :ghsa:q34m-jh98-gwm2
• safe_join catches certain paths on Windows that were not caught by ntpath.isabs on Python < 3.11. :ghsa:f9vj-2wh5-fj8j

v3.0.5

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Released 2024-10-24

• The Watchdog reloader ignores file closed no write events. :issue:2945
• Logging works with client addresses containing an IPv6 scope :issue:2952
• Ignore invalid authorization parameters. :issue:2955
• Improve type annotation fore SharedDataMiddleware. :issue:2958
• Compatibility with Python 3.13 when generating debugger pin and the current UID does not have an associated name. :issue:2957

v3.0.4

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Released 2024-08-21

• Restore behavior where parsing multipart/x-www-form-urlencoded data with invalid UTF-8 bytes in the body results in no form data parsed rather than a 413 error. :issue:2930
• Improve parse_options_header performance when parsing unterminated quoted string values. :issue:2904
• Debugger pin auth is synchronized across threads/processes when tracking failed entries. :issue:2916
• Dev server handles unexpected SSLEOFError due to issue in Python < 3.13. :issue:2926
• Debugger pin auth works when the URL already contains a query string. :issue:2918

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Summary of Changes

Hello @renovate-bot, I'm Gemini Code Assist[^1]! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request performs a crucial dependency update, upgrading the Werkzeug library to version 3.1.4 across multiple Python sample applications. The primary motivation for this update is to patch a recently identified security vulnerability (CVE-2025-66221) related to the safe_join function on Windows, which could lead to denial-of-service. Beyond the security fix, this update also brings in various bug fixes and minor improvements from the latest Werkzeug releases, ensuring the sample applications benefit from enhanced stability and features.

Highlights

• Security Update: Upgrades the Werkzeug dependency to v3.1.4 to address CVE-2025-66221, a security vulnerability affecting safe_join on Windows that could lead to denial-of-service.
• Dependency Consolidation: Standardizes the Werkzeug version across numerous requirements.txt files, updating from various older versions including 3.0.3, 2.3.8, and 1.0.1.
• Bug Fixes and Improvements: Incorporates several bug fixes and minor enhancements introduced in the Werkzeug 3.1.x release series, improving overall stability and functionality.

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