# Security Audit Report: Islandflow

## Executive Summary

Stage 15 final report assembly completed for the Islandflow `/piolium-deep` audit workspace. The repository presents a multi-service market-data platform with public web/API/WebSocket entrypoints, NATS/JetStream eventing, ClickHouse/Redis persistence, ingest workers, synthetic-admin controls, and an Electron shell. No promoted final finding directories were present under `piolium/findings/` during this assembly, so this report consolidates the available attack-surface and methodology artifacts rather than listing confirmed packaged findings.

## Findings by Severity

- Critical: 0
- High: 0
- Medium: 0

No promoted confirmed finding directories were present under `piolium/findings/` at assembly time. Earlier-stage candidate and chamber outputs remain available under `piolium/findings-draft/`, `piolium/chamber-workspace/`, and `piolium/adversarial-reviews/`, but no standalone `report.md` finding packages were available to link as final confirmed findings.

## Attack Surface Summary

The audit identified the primary exposed and security-relevant surfaces as: unauthenticated market-data REST and WebSocket routes in `services/api`, Next.js synthetic-admin proxy routes, external feed ingestion paths, NATS/JetStream subjects and KV state, ClickHouse query/insert sinks, Redis live/candle caches, Electron navigation/open-external boundaries, and Docker/edge deployment bindings.

Key supporting artifacts:

- [Knowledge Base / Threat Model](piolium/attack-surface/knowledge-base-report.md)
- [Architecture Entrypoints](piolium/attack-surface/architecture-entrypoints.md)
- [Manual Attack Surface Inventory](piolium/attack-surface/manual-attack-surface-inventory.md)
- [Public Routes Authorization Matrix](piolium/attack-surface/public-routes-authz-matrix.md)
- [Source/Sink Flow Review](piolium/attack-surface/source-sink-flows-all-severities.md)
- [Cross-Service Edges](piolium/attack-surface/cross-service-edges.md)
- [Candidate Scan Summary](piolium/attack-surface/candidates-summary.md)
- [Advisory Summary](piolium/attack-surface/advisory-summary.md)
- [Patch Bypass Summary](piolium/attack-surface/patch-bypass-summary.md)
- [Spec Gap Summary](piolium/attack-surface/spec-gap-summary.md)
- [State/Concurrency Summary](piolium/attack-surface/state-concurrency-summary.md)
- [Variant Summary](piolium/attack-surface/variant-summary.md)

## Coverage Gaps

- `piolium/findings/` was not present or contained no promoted finding packages at final assembly time; therefore no final per-finding reports or PoC links could be included.
- Candidate drafts and review evidence exist outside the promoted findings directory and should be reviewed before treating this as a no-findings audit result.
- Final report completeness depends on prior-stage promotion from drafts to `piolium/findings/<ID>-<slug>/report.md`; that promotion was not observable in this workspace.

## Methodology Notes

The audit followed the deep piolium workflow: advisory and architecture reconnaissance, attack-surface inventory, candidate scanning, custom SAST/source-sink review, structured review chambers, adversarial verification for higher-risk candidates, and final assembly. Chamber evidence is available at [`piolium/chamber-workspace/index.md`](piolium/chamber-workspace/index.md), with cluster debates covering news XSS, data exposure, synthetic admin proxying, concurrency, and infrastructure/bus risks. Static and structural analysis artifacts are available under `piolium/codeql-artifacts/`, `piolium/semgrep-rules/`, and `piolium/attack-surface/`.

## Assembly Checks

- Finding report size check: passed for every directory under `piolium/findings/` that existed; no promoted directories were found.
- Required final report written: `piolium/final-audit-report.md`.