* fix(email): guard user-supplied IMAP/SMTP hosts against SSRF
POST /api/email/accounts/test opened raw imaplib/smtplib connections to
whatever host:port the request body named, and POST/PUT /api/email/accounts
and PUT /api/email/config persisted arbitrary hosts for the background
pollers to contact. All of these sit behind require_user/require_owner with
no admin gate, so any authenticated user could make the server connect to
loopback, LAN and cloud-metadata targets (169.254.169.254) and read the
first 200 characters of the remote banner back out of the friendly error.
THREAT_MODEL.md lists email as admin-only; the tool layer honours that but
the HTTP routes did not.
Add check_outbound_host() to src/url_safety.py, a bare-host companion to
check_outbound_url() with the same classification (link-local, multicast,
reserved and unspecified always rejected; private/loopback only with
block_private) plus localhost-name handling and an explicit policy for names
that do not resolve. Wire it into the four email routes via
_check_mail_host(): non-admin owners (and everyone when
EMAIL_BLOCK_PRIVATE_IPS=true) also lose private/loopback targets, admins
keep the local-first LAN/Dovecot setups. Unresolvable names pass through
because the connect that follows fails with the same DNS error.
Regression tests cover the helper's policy table and each route: the test
route rejects before any socket opens, save routes reject before touching
the DB, admins keep loopback unless locked down, and an update that fails
validation leaves the stored row untouched.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TwcwfY2uQMxNRsK3y6xBAp
* fix(email): harden IMAP/SMTP SSRF protection against rebinding, TOCTOU, and unvetted hosts
- P0: Implement safe_create_connection() in src/url_safety.py to resolve hostnames once, validate every returned address against SSRF policy, and connect directly to the pinned IP. This eliminates DNS rebinding and TOCTOU while preserving TLS SNI and certificate hostname verification across IMAP, IMAPS, STARTTLS, SMTP, and SMTP_SSL.
- P1: Ensure unresolvable or deferred hostnames cannot become an unrestricted future connection capability by enforcing runtime SSRF validation fail-closed on every connection, while maintaining compatibility with offline configurations.
- P2: Extend SSRF enforcement to the core connection layer (_open_imap_connection, _send_smtp_message, _imap_connect) using ContextVar owner scoping, protecting pre-existing DB rows, restored configs, background pollers, and scheduled operations.
- P3: Allow admin and single-user access to IPv6 loopback (::1, [::1]) for local mail servers (e.g. Dovecot) by checking loopback before is_reserved, while keeping link-local, cloud metadata (169.254.169.254, 100.100.100.200), and non-admin restrictions strictly enforced.
- Add comprehensive regression and adversarial test coverage in tests/test_email_account_host_ssrf.py.
* fix(email): reject unresolved saved hosts without stdlib monkeypatches
Use the existing explicit policy IMAP/SMTP classes and canonical connect_outbound_tcp helper. Remove process-wide stdlib assignments, context-variable plumbing, redundant aliases and resolver-signature retries. Reject unsafe or unresolved hosts before account/config persistence, keep DNS work off the event loop, return fixed client errors, identify Alibaba metadata accurately and reject invalid TCP ports. Validation: 654 relevant email, URL-safety and CodeQL regression tests passed, 3 skipped. Three unrelated browser checks were excluded after environment failures (missing Playwright browser and Chromium timeout). Running-app checks verified rejected create/update/config requests leave stored data unchanged, administrator LAN configuration still works, and metadata/non-admin loopback are blocked.
---------
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: PR #6029 Reviewer <reviewer@odysseus-review.local>
Co-authored-by: Afonso Junior <chatgpt@yack.com.br>
* fix(security): block read-only cookbook tools for non-admin owners
list_cached_models, list_served_models, tail_serve_output, list_downloads,
search_hf_models, list_serve_presets and list_cookbook_servers were in the
plan-mode read-only allowlist but in neither NON_ADMIN_BLOCKED_TOOLS nor the
dispatcher's _ADMIN_TOOLS. Each implementation calls a require_admin route
over the internal loopback with the process-wide INTERNAL_TOOL_TOKEN and
never checks the owner, so a non-admin user's agent inherited admin reach
through them. list_cached_models is the worst case: a caller-chosen `host`
is forwarded to /api/model/cached, which SSHes to that host with the app
user's keys and walks caller-chosen model_dirs. THREAT_MODEL.md lists model
serving as admin-only, so gate the read side the same way as serve/download.
Adding the names to NON_ADMIN_BLOCKED_TOOLS also hides them from non-admin
tool schemas and caps bearer-token agent runs; _ADMIN_TOOLS blocks them at
dispatch. Regression test covers both lists, schema hiding, and that the
loopback is never reached for a non-admin owner.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TwcwfY2uQMxNRsK3y6xBAp
* fix(cookbook): bind request authority in admin gate regressions
Keep all seven read-only Cookbook tools in the admin prompt inventory. Grant request authority in dispatch tests so the admin gate itself is exercised, and verify administrators still reach each handler. Validation: 359 focused authorization, tool-policy and schema tests passed. Against the running app with real auth accounts, all seven tools reject a non-admin and an admin reaches the authenticated Cookbook HTTP API.
---------
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Afonso Junior <chatgpt@yack.com.br>
pewdiepie-archdaemon