1. Host-header injection (sso_initiate / sso_complete): replace
request.host_url with dify_config.CONSOLE_API_URL via a
_trusted_origin() helper that fails closed when unset. An
attacker-controlled Host header on sso-initiate would otherwise
be sealed into the signed state envelope, causing the IdP to
redirect the victim's EE-signed SSO assertion to evil.com.
2. Unvalidated JWS claim payloads: add ExtSubjectAssertionClaims
and ApprovalGrantClaimsPayload pydantic models and route every
verified payload through model_validate. A signed-but-malformed
blob now returns BadRequest('invalid_sso_assertion') or
VerifyError('claim shape invalid') instead of crashing the
handler with KeyError / 500. ApprovalGrantClaimsPayload is
imported lazily inside verify_approval_grant to break the
libs -> controllers cycle.
3. Timing-unsafe CSRF compare in approve_external: replace plain
!= with secrets.compare_digest.
4. Bearer rate-limit bypass on revoked tokens: move
enforce_bearer_rate_limit to fire after sha256_hex but before
resolver.resolve, so revoked-token replay is now bounded. Also
collapse the two distinct error messages (unknown token prefix
vs token unknown or revoked) into a single generic
'invalid_bearer' to remove the prefix-validity oracle.
Tests: 4 new unit-test files cover each finding plus one updated
test for the new bearer error string. 744 tests pass.
Dify Backend API
Setup and Run
Important
In the v1.3.0 release,
poetryhas been replaced withuvas the package manager for Dify API backend service.
uv and pnpm are required to run the setup and development commands below.
Using scripts (recommended)
The scripts resolve paths relative to their location, so you can run them from anywhere.
-
Run setup (copies env files and installs dependencies).
./dev/setup -
Review
api/.env,web/.env.local, anddocker/middleware.envvalues (see theSECRET_KEYnote below). -
Start middleware (PostgreSQL/Redis/Weaviate).
./dev/start-docker-compose -
Start backend (runs migrations first).
./dev/start-api -
Start Dify web service.
./dev/start-web./dev/setupand./dev/start-webinstall JavaScript dependencies through the repository root workspace, so you do not need a separatecd web && pnpm installstep. -
Set up your application by visiting
http://localhost:3000. -
Start the worker service (async and scheduler tasks, runs from
api)../dev/start-worker -
Optional: start Celery Beat (scheduled tasks).
./dev/start-beat
Environment notes
Important
When the frontend and backend run on different subdomains, set COOKIE_DOMAIN to the site’s top-level domain (e.g.,
example.com). The frontend and backend must be under the same top-level domain in order to share authentication cookies.
-
Generate a
SECRET_KEYin the.envfile.bash for Linux
sed -i "/^SECRET_KEY=/c\\SECRET_KEY=$(openssl rand -base64 42)" .envbash for Mac
secret_key=$(openssl rand -base64 42) sed -i '' "/^SECRET_KEY=/c\\ SECRET_KEY=${secret_key}" .env
Testing
-
Install dependencies for both the backend and the test environment
cd api uv sync --group dev -
Run the tests locally with mocked system environment variables in
tool.pytest_envsection inpyproject.toml, more can check Claude.mdcd api uv run pytest # Run all tests uv run pytest tests/unit_tests/ # Unit tests only uv run pytest tests/integration_tests/ # Integration tests # Code quality ./dev/reformat # Run all formatters and linters uv run ruff check --fix ./ # Fix linting issues uv run ruff format ./ # Format code uv run pyrefly check # Type checking
Generate TS stub
uv run dev/generate_swagger_specs.py --output-dir openapi
use https://jsontotable.org/openapi-to-typescript to convert to typescript