Bump the production-dependencies group across 1 directory with 4 updates

[dependabot]

Bumps the production-dependencies group with 4 updates in the /backend directory: flask, nltk, azure-cosmos and google-genai.

Updates flask from 3.1.2 to 3.1.3

Release notes

Sourced from flask's releases.

3.1.3

This is the Flask 3.1.3 security fix release, which fixes a security issue but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Flask/3.1.3/ Changes: https://flask.palletsprojects.com/page/changes/#version-3-1-3

• The session is marked as accessed for operations that only access the keys but not the values, such as in and len. GHSA-68rp-wp8r-4726

Changelog

Sourced from flask's changelog.

Version 3.1.3

Released 2026-02-18

• The session is marked as accessed for operations that only access the keys but not the values, such as in and len. :ghsa:68rp-wp8r-4726

Commits

• 22d9247 release version 3.1.3
• 089cb86 Merge commit from fork
• c17f379 request context tracks session access
• 27be933 start version 3.1.3
• 4e652d3 Abort if the instance folder cannot be created (#5903)
• 3d03098 Abort if the instance folder cannot be created
• 407eb76 document using gevent for async (#5900)
• ac5664d document using gevent for async
• 4f79d5b Increase required flit_core version to 3.11 (#5865)
• fe3b215 Increase required flit_core version to 3.11
• Additional commits viewable in compare view

Updates nltk from 3.9.2 to 3.9.3

Changelog

Sourced from nltk's changelog.

Version 3.9.3 2026-02-21

• Fix CVE-2025-14009: secure ZIP extraction in nltk.downloader (#3468)
• Block path traversal/arbitrary reads in nltk.data for protocol-less refs (#3467)
• Block path traversal/abs paths in corpus readers and FS pointers (#3479, #3480)
• Validate external StanfordSegmenter JARs using SHA256 (#3477)
• Add optional sandbox enforcement for filestring() (#3485)
• Maintenance: downloader/zipped models, CI/tooling updates

Thanks to the following contributors to 3.9.3: Chris Clauss, Eric Kafe, HyperPS, purificant, Shivansh-Game, Christopher Smith

Version 3.9.2 2025-10-01

• Update download checksums to use SHA256 in built index
• Fix percentage escape in new-style string formatting
• replace shortened URLs using goo.gl
• Make Wordnet interoperable with various taggers and tagged corpora
• Fix saving PerceptronTagger
• Document how to reproduce old Wordnet studies
• properly initialize Portuguese corpus reader
• support for mixed rules conversion into Chomsky Normal Form
• only import tkinter if a GUI is needed
• issue #2112 with Corenlp
• new environment variable NLTK_DOWNLOADER_FORCE_INTERACTIVE_SHELL
• Lesk defaults to most frequent sense in case of ties

Thanks to the following contributors to 3.9.2: Jose Cols, Peter de Blanc, GeneralPoxter, Eric Kafe, William LaCroix, Jason Liu, Samer Masterson, Mike014, purificant, Andrew Ernest Ritz, samertm, Ikram Ul Haq, Christopher Smith, Ryan Mannion

Version 3.9.1 2024-08-19

• Fixed bug that prevented wordnet from loading

Version 3.9 2024-08-18

• Fix security vulnerability CVE-2024-39705 (breaking change)
• Replace pickled models (punkt, chunker, taggers) by new pickle-free "_tab" packages
• No longer sort Wordnet synsets and relations (sort in calling function when required)
• Only strip the last suffix in Wordnet Morphy, thus restricting synsets() results
• Add Python 3.12 support
• Many other minor fixes

Thanks to the following contributors to 3.8.2: Tom Aarsen, Cat Lee Ball, Veralara Bernhard, Carlos Brandt, Konstantin Chernyshev, Michael Higgins, Eric Kafe, Vivek Kalyan, David Lukes, Rob Malouf, purificant, Alex Rudnick, Liling Tan, Akihiro Yamazaki.

Version 3.8.1 2023-01-02

• Resolve RCE vulnerability in localhost WordNet Browser (#3100)

... (truncated)

Commits

• 4154eb8 Merge pull request #3503 from ekaf/hotfix-3501
• 7a710cb Prepare release 3.9.3
• 1056b32 Merge pull request #3468 from HyperPS/fix/secure-unzip-rce
• 7dc5baa Resolve merge conflict in tag mapping using normalized nltk resource URL
• 7ef38b8 Merge pull request #3467 from HyperPS/develop
• b2e1164 Merge pull request #3485 from HyperPS/fix-filestring-sandbox-update
• ac0ce55 Merge pull request #3480 from HyperPS/fix/filesystem-sandbox-security
• 603e34d Merge pull request #3479 from HyperPS/fix/corpusreader-path-traversal
• b63a501 Merge pull request #3477 from HyperPS/fix/stanford-segmenter-rce-sha256
• df38955 Merge pull request #3494 from ekaf/ewnv
• Additional commits viewable in compare view

Updates azure-cosmos from 4.14.6 to 4.15.0

Release notes

Sourced from azure-cosmos's releases.

azure-cosmos_4.15.0

4.15.0 (2026-02-19)

Features Added

• GA support of Per Partition Automatic Failover and AvailabilityStrategy features.

Bugs Fixed

• Fixed bug where sdk was encountering a timeout issue caused by infinite recursion during the 410 (Gone) error. See PR 44770
• Fixed crash in sync and async clients when force_refresh_on_startup was set to None, which could surface as AttributeError: 'NoneType' object has no attribute '_WritableLocations' during region discovery when database_account was None. See PR 44987
• Fixed bug where unavailable regional endpoints were dropped from the routing list instead of being kept as fallback options. See PR 45200

Other Changes

• Added tests for multi-language support for full text search. See PR 44254
• Renamed availability_strategy_config introduced in 4.15.0b1 to availability_strategy for both sync and async clients. See PR 45086.
• Request-level availability_strategy needs to be set to False in order to disable availability strategy for that request, as opposed to setting it to None. See PR 45141.

Commits

• 54c81b9 [Groundedness] Check for intermediate (#45305)
• 145e110 [WIP] Revert changes to archetype-python-release.yml regarding py2docfx (#45295)
• 9d848cf recording (#45291)
• c62f73f Updates to package README.md (#45289)
• c0fade1 Fix beta subclient, such that all its members shows up in API ref-docs. Also ...
• 3682bda Sample test recording along with new LLM instruction (#45274)
• ef0ab33 Change depends to import_all in cosmos emulator ChecksOverride (#45284)
• 3479c73 [VoiceLive] Relocate azure-ai-voicelive to its own service directory (#45254)
• fc6c21a Redact credential token in default client logs controlled by env variable AZU...
• 6829ccb Fix apistub token path (#45271)
• Additional commits viewable in compare view

Updates google-genai from 1.63.0 to 1.64.0

Release notes

Sourced from google-genai's releases.

v1.64.0

1.64.0 (2026-02-18)

Features

• Add UnifiedMetric support to Vertex Tuning evaluation config (9a9908a)
• Support multimodal embedding for Gemini Embedding 2.0 and support MaaS models in Models.embed_content() (Vertex AI API) (af40cc6)

Changelog

Sourced from google-genai's changelog.

1.64.0 (2026-02-18)

Features

• Add UnifiedMetric support to Vertex Tuning evaluation config (9a9908a)
• Support multimodal embedding for Gemini Embedding 2.0 and support MaaS models in Models.embed_content() (Vertex AI API) (af40cc6)

Commits

• cff95b4 chore(main): release 1.64.0 (#2054)
• 3e8eef8 chore: Make discriminator properties required in Interactions
• 2ab5ea7 chore: migrate to gcloud storage
• e55004c chore: Add aiohttp as a required dependency.
• fafc3d8 chore: Add type assertions and ignore type overlap in genai libraries
• af40cc6 feat: Support multimodal embedding for Gemini Embedding 2.0 and support MaaS ...
• 9a9908a feat: Add UnifiedMetric support to Vertex Tuning evaluation config
• See full diff in compare view

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[github-actions]

Test Results

88 tests   87 ✅  27s ⏱️
 1 suites   1 💤
 1 files     0 ❌

Results for commit 76c6b84.