Files
twenty/packages/twenty-apps/examples/postcard
Charles Bochet 6e147a548b security: clear twenty-apps & seed-dependencies CVE alerts (#21410)
Clears the Oneleet/dependency CVE alerts from the `twenty-apps`
example/internal app lockfiles and the application-package
`seed-dependencies` template — all via parent/direct dependency
upgrades, **no `resolutions` overrides**.

## Lock refresh (non-breaking, within existing ranges)
- **postcss** 8.5.8/8.5.9 → 8.5.15 — CVE-2026-41305 — postcard,
hello-world, self-hosting
- **ip-address** 10.1.0 → 10.2.0 — CVE-2026-42338 — postcard,
hello-world, self-hosting, twenty-for-twenty
- **yaml** 1.10.2 → 1.10.3 — CVE-2026-33532 — call-recording

## seed-dependencies (direct/parent bumps)
- **uuid** `^10.0.0 → ^11.1.1` (direct) — CVE-2026-41907
- **body-parser** `^1.20.4 → ^1.20.5`, which pulls **qs** 6.15.2 —
CVE-2026-8723
- **socks** 2.8.3 → 2.8.9 (refresh), which pulls **ip-address** 10.2.0 —
CVE-2026-42338

## twenty-for-twenty
- **resend** 6.12.0 → 6.12.4 (refresh): 6.12.4 drops the `svix` dep that
pulled the vulnerable **uuid** 10.0.0, leaving only uuid 13.0.2 —
CVE-2026-41907

All flagged packages were transitive (except the direct seed-deps
`uuid`); no app source changes.
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Postcard App — Twenty App Example

A rich example app showcasing all Twenty app entity types. Use this as a reference when building your own apps.

What's included

This app demonstrates every entity type available in the Twenty SDK:

Entity Files What it shows
Application src/application.config.ts App metadata, application variables, server variables
Objects src/objects/ Custom objects with inline fields, junction tables
Fields src/fields/ Standalone fields, relations (ONE_TO_MANY, MANY_TO_ONE), extending standard objects
Logic Functions src/logic-functions/ HTTP routes, database event triggers, cron schedules, tool functions, install hooks
Front Components src/components/ React components rendered inside Twenty's UI
Roles src/roles/ Permission roles with object and field-level access control
Views src/views/ Saved table views with column configuration
Navigation src/navigation-menu-items/ Sidebar links targeting views
Skills src/skills/ AI skill providing context to agents
Agents src/agents/ AI agent with a system prompt
Page Layouts src/page-layouts/ Custom record page with a front component widget

Getting started

# From this directory
yarn install
yarn twenty dev

Learn more