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* fix(security): close IDOR gaps in OAuth credential and execution authorization Routes that called resolveOAuthAccountId followed by a conditional workspace permission check (only run when workspaceId was set) silently skipped all ownership validation on the legacy account-ID fallback path. Any authenticated user could supply a raw account.id to access another tenant's OAuth credentials. - Replace resolveOAuthAccountId + conditional perm check with authorizeCredentialUse in: auth/oauth/wealthbox/item, tools/gmail/label, tools/onedrive/files, tools/onedrive/folder, tools/outlook/folders, tools/wealthbox/item (routes 1, 3-7) - Add authorizeCredentialUse ownership gate before resolveVertexCredential in providers/route.ts (route 2) - Add verifyFileAccess check on the user-supplied file key before downloadFileFromStorage in tools/wordpress/upload (route 8) - Add workflowId param to PauseResumeManager methods (enqueueOrStartResume, beginPausedCancellation, completePausedCancellation, blockQueuedResumesForCancellation, clearPausedCancellationIntent, getPausedCancellationStatus, processQueuedResumes) and filter all pausedExecutions lookups by workflowId so callers cannot act on another tenant's paused execution by supplying a foreign executionId (route 9) - Update all call sites (cancel, resume, poll routes) to pass workflowId * fix(security): close verifyFileAccess bypass, thread workflowId to processQueuedResumes, fix log level - Fail closed in WordPress upload when userFile.key is present but authResult.userId is absent, preventing silent bypass of ownership check via JWT fallback path - Thread workflowId into processQueuedResumes in the async resume error-recovery path and in pause-persistence.ts to close residual cross-tenant gap - Change logger.error to logger.warn for credential access denial in OneDrive folder route to match all other routes in this PR * fix(security): thread workflowId through all processQueuedResumes call sites Closes residual cross-tenant IDOR gap where processQueuedResumes was called without a workflowId scope in persistPauseResult, startResumeExecution (success and error paths), and clearPausedCancellationIntent. workflowId was already in scope at each site — this wires it through to the existing optional parameter. * fix(security): remove any types, drop extraneous comments, normalize caught errors - catch (error: any) → catch (error) + toError(error).message in resume and cancel routes - Remove what-not-why inline comments from wordpress upload and onedrive/files routes - Remove redundant debug-only item breakdown log and the file-IDs log in onedrive/files - Trim extraneous DAG-edge comments from updateSnapshotAfterResume in HITL manager * fix: use logger.warn for credential access denial in outlook folders route * fix(security): make workflowId required in all HITL pause/resume methods All 7 method signatures (processQueuedResumes, enqueueOrStartResume, beginPausedCancellation, completePausedCancellation, blockQueuedResumesForCancellation, clearPausedCancellationIntent, getPausedCancellationStatus) previously accepted workflowId as optional. Every call site already supplies it — making it required closes the vulnerability at the type level so future callers cannot accidentally omit tenant scoping and silently fall back to an unscoped DB query. * fix(security): thread workflowId through internal HITL cancellation calls and remove dead branches in credential-access * fix(security): harden workflowId scoping and file key guard Replace falsy workflowId checks in PauseResumeManager (all methods now unconditionally apply the workflowId WHERE clause, preventing empty-string bypass). Flip WordPress upload file guard from truthy key check to explicit non-empty validation so key:"" fails closed with a 404 instead of silently skipping access control.
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
Build Workflows with Ease
Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
Supercharge with Copilot
Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
Integrate Vector Databases
Upload documents to a vector store and let agents answer questions grounded in your specific content.
Quickstart
Cloud-hosted: sim.ai
Self-hosted: NPM Package
npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Made with ❤️ by the Sim Team