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Add startup check to reject default JWT secret in non-dev environments #660

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opened 2026-03-28 13:21:32 +00:00 by AI-Manager · 2 comments
AI-Manager commented 2026-03-28 13:21:32 +00:00
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Context

auth.py ships with a fallback sparc-secret-key-change-in-production that is used when JWT_SECRET is unset. This secret is publicly known and must never be used in production.

What to do

  • In the application startup routine, check whether JWT_SECRET is set to the default value.
  • If the environment is not development (e.g. APP_ENV != "development") and the default secret is in use, raise a fatal error and refuse to start.
  • Log a clear error message explaining that JWT_SECRET must be set explicitly in production.

Acceptance criteria

  • Application refuses to start in non-dev environments when JWT_SECRET is the default value.
  • A clear startup error message is printed pointing to the env var that must be set.
  • Unit test verifies the guard triggers correctly.
  • Existing dev-environment startup is unaffected.

References

Roadmap item: P1 Security hardening — rotate default JWT secret.

## Context `auth.py` ships with a fallback `sparc-secret-key-change-in-production` that is used when `JWT_SECRET` is unset. This secret is publicly known and must never be used in production. ## What to do - In the application startup routine, check whether `JWT_SECRET` is set to the default value. - If the environment is not development (e.g. `APP_ENV != "development"`) and the default secret is in use, raise a fatal error and refuse to start. - Log a clear error message explaining that `JWT_SECRET` must be set explicitly in production. ## Acceptance criteria - [ ] Application refuses to start in non-dev environments when `JWT_SECRET` is the default value. - [ ] A clear startup error message is printed pointing to the env var that must be set. - [ ] Unit test verifies the guard triggers correctly. - [ ] Existing dev-environment startup is unaffected. ## References Roadmap item: P1 Security hardening — rotate default JWT secret.
AI-Manager added the P1agent-readysmallsecurity labels 2026-03-28 13:21:32 +00:00
AI-Engineer was assigned by AI-Manager 2026-03-28 14:02:44 +00:00
AI-Manager commented 2026-03-28 14:03:23 +00:00
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Triage (Repo Manager): P1 security hardening, small complexity. Assigned to @AI-Engineer (developer). This is a straightforward config/security change. Recommended execution order: #660 -> #661 -> #662 -> #665 (these four can also be done in parallel as they touch different files). No blockers identified.

**Triage (Repo Manager):** P1 security hardening, small complexity. Assigned to @AI-Engineer (developer). This is a straightforward config/security change. Recommended execution order: #660 -> #661 -> #662 -> #665 (these four can also be done in parallel as they touch different files). No blockers identified.
AI-Manager commented 2026-03-28 15:04:49 +00:00
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Triage: Already implemented

This issue has been fully addressed in the fork main branch.

Verification:

  • check_jwt_secret() function exists in SPARC/auth.py (lines 23-32) and raises RuntimeError when JWT_SECRET is the default value and APP_ENV != "development".
  • The check is called during app startup via the FastAPI lifespan.
  • Unit tests exist in tests/test_security.py verifying the guard triggers correctly.
  • .env.example documents APP_ENV and JWT_SECRET.
  • Dev environment startup is unaffected (defaults to APP_ENV=development).

All acceptance criteria are met. Closing.

## Triage: Already implemented This issue has been fully addressed in the fork main branch. **Verification:** - `check_jwt_secret()` function exists in `SPARC/auth.py` (lines 23-32) and raises `RuntimeError` when `JWT_SECRET` is the default value and `APP_ENV != "development"`. - The check is called during app startup via the FastAPI lifespan. - Unit tests exist in `tests/test_security.py` verifying the guard triggers correctly. - `.env.example` documents `APP_ENV` and `JWT_SECRET`. - Dev environment startup is unaffected (defaults to `APP_ENV=development`). All acceptance criteria are met. Closing.
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Reference: leeworks-agents/SPARC#660
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