Phase 1: Critical security fixes - 59 permissions, grants, RLS, mass-assignment, ownership, leaks, MIME

alembic/versions/0100_restrict_delete_grants.py

@@ -0,0 +1,46 @@
+"""Restrict DELETE grants on sensitive tables.
+
+Removes DELETE privilege from crm_api and crm_worker on:
+api_tokens, audit_log, notification_types, password_reset_tokens,
+plugin_allowlist, plugin_migrations, plugins, sessions,
+tenant_plugin_activation, tenants, user_tenants, users.
+
+crm_auth keeps DELETE on sessions + password_reset_tokens (for logout/reset).
+
+Revision ID: 0100
+"""
+
+from alembic import op
+
+revision = "0100"
+down_revision = "0099"
+branch_labels = None
+depends_on = None
+
+# Tables where DELETE must be removed from crm_api and crm_worker
+SENSITIVE_TABLES = [
+    "api_tokens",
+    "audit_log",
+    "notification_types",
+    "password_reset_tokens",
+    "plugin_allowlist",
+    "plugin_migrations",
+    "plugins",
+    "sessions",
+    "tenant_plugin_activation",
+    "tenants",
+    "user_tenants",
+    "users",
+]
+
+
+def upgrade() -> None:
+    for table in SENSITIVE_TABLES:
+        op.execute(f"REVOKE DELETE ON TABLE {table} FROM crm_api;")
+        op.execute(f"REVOKE DELETE ON TABLE {table} FROM crm_worker;")
+
+
+def downgrade() -> None:
+    for table in SENSITIVE_TABLES:
+        op.execute(f"GRANT DELETE ON TABLE {table} TO crm_api;")
+        op.execute(f"GRANT DELETE ON TABLE {table} TO crm_worker;")