"Is this path inside that root" is asked in twenty places in this tree and
answered twenty times by a locally written realpath/commonpath pair. Nine test
files exist because nine call sites each needed their own proof. Each one is
defensible alone; together they are the defect, because the boundary has no
single definition and a site that gets a detail wrong is wrong by itself.
src/path_confinement.py is that definition, and it settles the details the
copies disagreed on. Both sides get canonicalized: comparing a realpath-ed
candidate against a root that was only abspath-ed is the macOS /tmp ->
/private/tmp mismatch that has already produced a false failure here, and
canonicalizing one side is worse than canonicalizing neither. commonpath rather
than startswith, because /a/bc begins with /a/b and is not inside it. A relative
candidate joins the root rather than os.getcwd(), which is whatever directory
the server happens to be running in. NUL and newline are refused with a reason
instead of caught by a bare `except Exception` and reported as an ordinary
escape. Eighteen call sites go through it now. It deliberately does not decide
whether a path is sensitive -- that deny list answers "allowed" rather than
"inside", and it stays with src/tool_execution, which owns it. The one
commonpath left in the tree, in src/workspace_paths.py, stays: that function
translates a host path into a container path, so canonicalizing either side
would change the relative path it computes and break the mapping. It is not a
confinement check.
Two of those sites were weaker than the rest and are fixed rather than moved.
The email attachment check used abspath, which folds `..` but does not resolve
symlinks, so a symlink written into the extraction directory passed it and was
then read through. The skill-reference guard compared a realpath-ed target
against a raw dirname, so on a host where the skills tree is reached through a
symlink the two sides never matched and the guard could not fire.
The execution boundary had two separate holes.
The workspace namespace bound /home and /mnt read-write. On the one platform
where that namespace engages at all, a command inside it reaches outside the
workspace and writes to the user's home directory -- measured by running this
argv on a Linux host with working bubblewrap, not inferred from the source.
Binding the user's whole home directory into a workspace-confinement namespace
gives back most of what the namespace was for. Both are read-only now. The
workspace is also bound writable at its real host path, not only at /workspace:
BashTool's own /tmp redirect rewrites `/tmp/` to `<agent_cwd()>/.tmp/` before
the namespace is built, so the command bwrap receives already names the real
path, and those writes previously landed only because the workspace happened to
sit under the writable /home.
`namespaced or _replace_workspace_alias(...)` chose between a mount namespace
and a regex with nothing in the result saying which one ran. The fallback
rewrites the literal token /workspace in the command string, so a command that
never mentions /workspace is untouched by it and runs on the host unrestricted
-- which is every agent shell command on macOS. Both tools now ask
containment.probe() instead of each deciding for itself, and every bash and
python result carries a containment block naming the mechanism and stating
whether the filesystem dimension actually held. Under enforcing mode the
command is not run and the result says so.
That block reports the filesystem dimension only, and says so in a
reported_dimensions field. The probe knows this host could also give a process
group and a real wall clock, but these two tools still assemble their own
create_subprocess_* call and pass neither, so listing those dimensions would be
exactly the false claim src/containment.py calls worse than an honest absence.
probe() is new on src/containment.py: the same mechanism table and the same
arithmetic as acquire(), stopping before the side effects. acquire() is the
wrong shape for a decision -- it writes a durable grant record, and a record
whose pid is never filled in and whose release() never runs is an entry a
restart reaper keeps finding.
CONTAINMENT_MODE stays report_only. Flipping it refuses every agent shell
command on macOS and on any Linux host without bubblewrap, which is a product
decision rather than a code one.
Smaller things in the same area: the /tmp redirect's makedirs was unguarded, so
a read-only workspace turned a command that merely mentioned `/tmp/` into an
OSError traceback instead of a tool error; it degrades now. WORKSPACE_MOUNT
moved to src/constants.py so the namespace and the path resolvers read one
definition of the contract rather than two. The ".tmp" dirname got a constant,
since it appeared in both tool paths.
One generated artifact moved with it: website/configuration-reference.md pins
the source line where each ODYSSEUS_* variable is read, and three of those
shifted. Regenerated with scripts/generate_env_reference.py; the diff is line
numbers only.
Three existing tests changed. test_workspace_artifact_tool_floor asserted that
an unsafe interpreter prefix produces no `--ro-bind <prefix> <prefix>`, which
now fires on /home because /home is legitimately a read-only base mount.
Asserting the absence of a literal flag string cannot distinguish "the prefix
was rejected" from "the argv mounted that root itself", so it compares the argv
against the no-prefix baseline instead: an unsafe prefix must add nothing.
The Windows bash test asserted dict equality on the
whole result, which makes adding a field to every bash result impossible without
touching a test about tmux; it asserts the shape now. The personal-dir symlink
test grepped the resolver's source for the literal "os.path.realpath", which is
gone because the resolution moved into the shared boundary -- it keeps the
negative assertion that the closure must not grow its own abspath check again,
and the behavioural half now runs against the boundary, where it covers every
call site instead of one closure.
Not verified: the bubblewrap argv is asserted, not executed. There is no bwrap
on macOS, and in Docker it needs --privileged to work at all -- default and
seccomp=unconfined both fail with "Creating new namespace failed", and
--cap-add=SYS_ADMIN fails at pivot_root. The Python tool's
needs_virtual_namespace gate means ordinary Python code gets no namespace even
on a Linux host that could provide one; that is reported now but deliberately
not changed, because it alters the Linux Python path on every call and cannot be
checked from here.
Use the upload handler's tolerant index loader when reading upload metadata so corrupt uploads.json degrades to missing metadata instead of a 500. Return 400 for malformed vision JSON request bodies and add regression coverage for both paths.
* fix(api): attribute bearer-token actions to the token owner on owner-scoped routes
Owner-scoped chat, session, and upload routes called
get_current_user(), which resolves a bearer ody_ API token to the
sandboxed "api" pseudo-user. A paired API-token client (companion, CLI,
IDE extension) therefore saw and created a separate "api"-owned silo
instead of the owner's data.
effective_user() already exists for exactly this: it attributes a token's
actions to request.state.api_token_owner, is identical to
get_current_user() for cookie sessions, and falls back safely when a
token has no owner. session_routes.py was already migrated; this
completes the migration for the remaining owner-scoped routes:
- chat_helpers.py: chat-privilege enforcement, message attribution, prefs/context
- chat_routes.py: orphaned-endpoint owner, session-auth owner, message search
- upload_routes.py: upload owner attribution + access checks
The /api/models swap is intentionally omitted: #4292 already migrated it
to effective_user (plus the chat-scope gate and ownerless-token 403), so
this PR keeps dev's version of routes/model_routes.py unchanged.
chat_routes.py keeps importing get_current_user for the workspace owner
gate; session_routes.py drops the now-unused import.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* test: target effective_user in auth monkeypatches and owner-scope assertion
The owner-scoped routes now call effective_user() instead of
get_current_user(), so the tests that stubbed get_current_user (or
asserted on it) follow suit:
- test_chat_helpers.py, test_review_regressions.py,
test_kv_cache_invalidation_2927.py: monkeypatch effective_user
- test_session_endpoint_owner_scope.py: assert the owner-scope guard uses
effective_user(request)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
When uploads.json contains a malformed entry without an 'id' key,
the file-serve and lookup helpers crash with KeyError instead of
gracefully skipping the entry.
* Stop multi-file uploads from tripping the per-IP concurrency guard
The /api/upload concurrency check summed its condition over `files`, but the
condition didn't reference the loop variable — so it collapsed to len(files)
whenever the IP had any recent upload. A single multi-file batch sent right
after another upload therefore counted itself as N concurrent uploads and hit
max_concurrent_uploads (3), returning 429. The browser swallows the 429 (no
`files` in the body) and sends the chat with no attachments, so the model
"doesn't even see" them (issue #1346).
Count genuine recent upload events instead, via a pure count_recent_uploads()
helper, independent of the current batch's file count. save_upload still
enforces the per-minute sliding-window rate limit per file, so throttling is
preserved.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* Also reconcile the per-minute upload rate limit with the batch cap
Follow-up within #1346: even after the concurrency-guard fix, a 6+ file batch
still failed because save_upload() counts each file against upload_rate_limit
(was 5/min) while the composer allows MAX_FILES=10 per batch — the reporter saw
"5 attachments work, 6 fail". Raise the per-minute file cap to 60 so a single
full batch (and a few of them) isn't self-rejected; burst abuse stays bounded by
max_concurrent_uploads. Add a real 6-file regression + a config guard that the
cap exceeds the frontend MAX_FILES.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Léo