---
phase: 67-expansion-sql-coverage-and-tech-debt-cleanup
audited_at: 2026-05-27
asvs_level: 1
threats_open: 0
verdict: SECURED
---

# Security Audit — Phase 67

## Threat Verification

| Threat ID | Category | Disposition | Status | Evidence |
|-----------|----------|-------------|--------|----------|
| T-67-01 | Tampering | accept | CLOSED | Test fixture is text-only, no executable code outside the sqllogictest harness. Checked into repo; tampering surfaces in code review. No accepted-risk doc entry required at ASVS L1. |
| T-67-02 | Information Disclosure | accept | CLOSED | Fixture data is fully synthetic (`('US', 100.00)`, `('EU', 200.00)`); no PII or secrets. No accepted-risk doc entry required at ASVS L1. |
| T-67-02-01 | Tampering | mitigate | CLOSED | `src/body_parser.rs:7` — `use crate::ident::find_identifier_end;`. Call site confirmed inside `parse_single_table_entry` at `src/body_parser.rs:694`: `find_identifier_end(&after_as[name_end..], /* allow_paren = */ true)` within the loop that consumes dot-separated identifier segments before any PRIMARY KEY / UNIQUE scan. `src/ident.rs:186` confirms the helper is `pub fn`. Mitigation covers the canonical TECH-DEBT #24 bug class (quoted name containing literal `PRIMARY KEY` substring). |
| T-67-02-02 | DoS | accept | CLOSED | Loop bounded by `after_as.len()`; `find_identifier_end` returns >= 1 for non-empty input; the dot-consumption branch advances `name_end` by 1 additionally. No unbounded recursion or quadratic path. Accepted per documented analysis in 67-02-PLAN.md. |
| T-67-03-01 | Tampering | mitigate | CLOSED | `test/integration/test_adbc_queries.py:100` — `extension_path_sql = str(extension_path).replace("'", "''")` applied before interpolation into `FORCE INSTALL '{extension_path_sql}'` at line 101. Comment `IN-02` present at line 97. Mitigation is at the only path-interpolation site in `_bootstrap_extension`; the sibling `LOAD semantic_views` statement uses a registered extension name, not a path. |
| T-67-03-02 | Tampering | accept | CLOSED | `66-REVIEW-FIX.md` is a planning doc checked into the repo; tampering surfaces in code review. Doc-only, no production impact. |
| T-67-04-01 | (none) | accept | CLOSED | Pure metric-name rename in a test fixture. No SQL emission semantics, no FFI surface, no new trust boundary. |

## Unregistered Flags

**Plan 01 SUMMARY** — No threat flags declared.
**Plan 02 SUMMARY** — No threat flags declared (audit-grep classification deviation was an execution-environment finding about TECH-DEBT, not a new attack surface).
**Plan 03 SUMMARY** — No threat flags declared. C3 closes T-67-03-01 as noted in the summary. The `test_adbc_transactions.py` sibling interpolation is surfaced as a TECH-DEBT follow-up candidate, not a new threat surface in this phase.
**Plan 04 SUMMARY** — No threat flags declared.

## Accepted Risks Log

| Risk | Rationale | Owner |
|------|-----------|-------|
| T-67-02-02 (DoS — identifier-walk loop) | Loop is bounded by input length; `find_identifier_end` contract guarantees >= 1 byte advance per call for non-empty input; the `name_end += 1` dot step is an additional advance. No realistic path to unbounded iteration. | Phase 67 Plan 02 |
| T-67-03-02 (Tampering — 66-REVIEW-FIX.md) | Planning doc only; no executable code. Code review is the control. | Phase 67 Plan 03 |
| T-67-04-01 (no threat surface) | Metric-name rename in integration test fixture. No production code path. | Phase 67 Plan 04 |
| T-67-01 (Tampering — test fixture) | sqllogictest fixture; no executable code outside the harness. Code review is the control. | Phase 67 Plan 01 |
| T-67-02 (Information Disclosure — fixture data) | Fully synthetic data; no PII. | Phase 67 Plan 01 |

## Verification Notes

- T-67-02-01 verified by grep (`grep -n "find_identifier_end" src/body_parser.rs`) returning matches at line 7 (import) and line 694 (call site), with the call site confirmed inside `fn parse_single_table_entry` (line 661). `src/ident.rs:186` confirms the helper is publicly exported.
- T-67-03-01 verified by grep (`grep -n "replace.*'.*''"`) returning match at `test/integration/test_adbc_queries.py:100`; the subsequent line 101 uses `extension_path_sql` (not the raw `extension_path`) in the f-string interpolation.
- `src/ident.rs` confirmed unmodified (D-09 honoured): `find_identifier_end` defined at line 186 as shipped in Phase 64.
- Integration test quality gate (`just test-all`) could not run under the executor worktree sandbox (macOS `SCDynamicStore` / `uv` panic). Rust unit + proptest + sqllogictest all passed. C3 change is provably a no-op for current project-internal paths (no embedded single quotes); Plan 04 summary states `just test-all` exited 0 in its worktree run.
