sales-trainer/docs/engineering-log/2026-08-15-legacy-security-remediation-verification.md

Legacy security remediation verification — 2026-08-15

Date: 2026-08-15 Status: in progress; local verification complete, final exact-current independent gate pending

Scope

This entry records the post-remediation verification after the additional exact-current findings covering falsey ownership markers, whitespace/path-like tenant IDs, malformed persona collections, non-finite JWT/debrief values, rate-limit initialization, analytics/export tenant/private scope, bounded PDF extraction, aggregate upload budgets, and upload cleanup.

Implementation state

The current working tree contains minimal root-cause fixes with regression coverage. JSON stores remain runtime-authoritative. SQLAlchemy/Alembic repositories remain local-only and are not wired into runtime storage.

Verification evidence

• backend/.venv/bin/python -m pytest -q backend/tests — 247 passed in 46.55s.
• backend/.venv/bin/python -m pytest -q backend/tests/test_legacy_security_regressions.py backend/tests/test_upload_security.py backend/tests/test_final_review_regressions.py backend/tests/test_weak_area_analysis.py — 54 passed in 5.23s.
• backend/.venv/bin/python -m compileall -q backend/app backend/tests — passed.
• AST parse of backend application and test files — 70 files passed.
• git diff --check — passed.
• Added-line security scans — no hardcoded secrets, shell execution, dynamic eval/exec, pickle loads, or formatted SQL query patterns detected.
• ruff and mypy were unavailable in the local environment.

These are local remediation evidence only; they are not production approval.

Independent review status

The full-scope exact-current reviewer deleg_93ef64c5 timed out after 600 seconds without a complete five-key JSON verdict. It is no approval and no findings are inferred from the timeout.

A replacement batch deleg_df17f04e was stopped because it began before the final service-boundary hardening. The final code-freeze batch deleg_6885e5b9 is running:

• authentication, storage, and rate-limit boundaries;
• tenant, group, ownership, persona, and /me boundaries;
• trainee analysis, analytics/export, parser, and upload boundaries.

The legacy-security gate remains blocked until every required slice returns valid JSON with exactly the five required keys, passed=true, and empty security_concerns and logic_errors arrays.

Operational boundary

No commit, push, deploy, public-access restoration, production migration, credential rotation, or authenticated production smoke occurred. Docker, PostgreSQL runtime/parity, real-provider QA, browser/mobile QA, and production verification remain pending.

Next action

Validate all three deleg_6885e5b9 payloads when they return. If any reviewer times out, truncates, emits incomplete JSON, or reports a blocking finding, keep the gate blocked and remediate only verified findings before rerunning the affected scope.