# Phase 14 — Security Evidence

**Phase:** 14 — Selective Analysis and Byte Cache
**Audit date:** 2026-06-23
**Auditor:** gsd-execute-phase security gate (claude-sonnet-4-6)
**ASVS Level:** L2
**Status:** SECURED — 0 open threats, 3 accepted risks

## Threat Register Summary

| Threat ID | Threat | Status |
|-----------|--------|--------|
| T-14-01 | IDOR — analysis job or cache entry crosses user boundary | CLOSED |
| T-14-02 | Credential/object_key disclosure in analysis or cache response | CLOSED |
| T-14-03 | Hidden provider file mutation during analysis | CLOSED |
| T-14-04 | Provider bytes downloaded during estimate | CLOSED |
| T-14-05 | Cache quota corruption | CLOSED |
| T-14-06 | Cross-user cache entry access | CLOSED |
| T-14-07 | Analysis job remains visible to admin | CLOSED |
| T-14-08 | Cache status endpoint exposes object_key or credentials_enc | CLOSED |
| T-14-09 | Eviction deletes bytes for pinned active job | CLOSED |
| T-14-10 | Provider credentials in Celery broker payload | CLOSED |
| T-14-11 | Provider mutation during Celery processing | CLOSED |
| T-14-12 | Cache pin leak on processing failure/cancellation | CLOSED |
| T-14-13 | Stale analysis result presented when provider metadata changed | CLOSED |
| T-14-14 | Byte cache delivers stale/wrong bytes | CLOSED |
| T-14-15 | Cache status endpoint exposes per-entry metadata | CLOSED |

Full threat register evidence is documented in `SECURITY.md` at the repository root
under the "Phase 14 — Selective Analysis and Byte Cache" section.

## Security Gate Checklist

- [x] `bandit -r backend/ --exclude backend/tests --severity-level high` — 0 HIGH, 0 MEDIUM
- [x] `npm audit --audit-level=high` — 0 vulnerabilities
- [x] `docker compose config --quiet` — no output (all env vars resolve)
- [x] `gitleaks detect --redact` — 0 new findings (3 pre-existing test-fixture strings from May 2026)
- [x] Backend tests pass: 856 passed
- [x] Frontend tests pass: 471 passed
- [x] Admin blocked from all /analysis/ and /analysis/cache endpoints
- [x] `object_key` and `credentials_enc` absent from `CacheStatusOut`, `AnalysisJobOut`, `AnalysisJobItemOut`
- [x] `process_cloud_analysis_item` Celery task payload contains IDs only
- [x] `FakeCloudAdapter.mutation_call_count == 0` after estimate and full pipeline test
- [x] `FakeCloudAdapter.byte_call_count == 0` after estimate test

## Accepted Risks

| Risk ID | Component | Accepted Risk | Rationale |
|---------|-----------|---------------|-----------|
| T-14-SC-pip | pip-audit local tooling | pip-audit not runnable against Python 3.12 requirements in Python 3.9 local env | No new Python packages added in Phase 14; existing packages audited in Phase 8; same accepted gap as Phases 12 and 13 |
| T-14-docx | test_extract_docx failure | ModuleNotFoundError: python-docx/libmagic not in local test environment | Pre-existing; unrelated to Phase 14 |
| T-14-quota-nonfatal | Quota increment failure is non-fatal for analysis | When quota increment fails, processing continues; cache entry skipped | Only MinIO storage step is omitted; extracted_text and topics durably persisted |