Adds an always-on Host-header allowlist and a cross-site Origin/CSRF guard,
hardens the text/plain body parser, validates the WebSocket upgrade origin,
and escapes AI-derived fields in the subagent panel. Closes the two
CRITICALs and 5 HIGHs from the 2026-06-09 adversarial security review.
- C1: no Host allowlist -> DNS rebinding drove the full API (RCE) on the
default no-auth loopback install. New registerHostGuard rejects rebound
custom domains; allows loopback, any IP literal, the bind host,
*.ts.net / *.trycloudflare.com / *.cfargotunnel.com, the active managed
tunnel, and CODEMAN_ALLOWED_HOSTS.
- C2: a global text/plain parser JSON-parsed every body, enabling cross-site
simple-request CSRF. Parser now keeps the raw string; /api/crash-diag
self-parses; the global Origin guard rejects cross-site state changes.
- H1/H3/H6: self-update, session create/input, and settings/tunnel toggles
were CSRF-triggerable -> now covered by the Origin guard.
- H4: the subagent activity panel injected raw AI tool names/inputs into
innerHTML (executed under CSP 'unsafe-inline'). All sinks now escapeHtml'd.
- H5: the WebSocket upgrade had no Origin/Host check (CSWSH) -> now validated.
A missing Origin is allowed so curl/CLI and Claude Code hooks keep working;
custom reverse-proxy domains need CODEMAN_ALLOWED_HOSTS=host,.suffix.
Deferred: H2 (self-update tag signing, needs signing infra) and CSP
'unsafe-inline' removal (needs a nonce migration).
Tests: test/network-host-guard.test.ts (19), test/routes/ws-routes.test.ts
updated. Report: docs/reports/security-review-2026-06-09.md
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
WebSocket route: add socket error handler to prevent process crashes, enforce
per-session connection limit (max 5), track/decrement counts on close.
CJK input: add destroy() method with proper listener cleanup, guard against
double-init, add maxlength/aria-label to textarea, use language-neutral
placeholder, explicitly clear cjkActive on hide.
install.sh: fix update() to use $BRANCH and $REPO_URL instead of hardcoded
origin/master — fork users were silently switched back to master on update.
README: fix broken markdown table (paragraph concatenated into last cell),
add CODEMAN_NODE_VERSION to env var table.
Tests: add 8 new test cases for batch coalescing, flush threshold, unknown
message types, connection limit, heartbeat, readyState guards. Import
MAX_INPUT_LENGTH from config, add connectWs timeout, replace setTimeout
with vi.waitFor in cleanup test.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
16 tests covering session-not-found close code, terminal output with
DEC 2026 sync markers, client input forwarding, resize bounds
validation, malformed message handling, and connection cleanup of
session event listeners.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
