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security: block loopback-bootstrapped GUI sessions from mutating machine state - #410

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codex/propose-fix-for-local-session-vulnerability
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security: block loopback-bootstrapped GUI sessions from mutating machine state#410
luvs01 wants to merge 20 commits into
Devfrom
codex/propose-fix-for-local-session-vulnerability

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@luvs01

@luvs01 luvs01 commented Sep 3, 2026

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Motivation

  • A loopback-only connected-client listener could mint GUI sessions without credentials and those session values could be replayed by a local process to call machine-management mutation endpoints (shim install/uninstall, disconnect, sync, recycle). This exposure risks local integrity and availability for configured clients.

Description

  • Add a guard in src/client/machine-listener.ts so a gui-session obtained via the loopback bootstrap can be used for status/diagnostic GET reads but will receive 403 for state-changing requests (non-GET/HEAD) to /api/machine/* rather than authorizing durable machine mutations.
  • Preserve existing management authentication and the readable machine-status surface; only mutation paths are refused for credentialless bootstrapped sessions.
  • Update tests/client-machine-listener.test.ts to assert the new behavior: authenticated reads still succeed while loopback-bootstrapped attempts to call /api/machine/sync, /api/machine/shim (POST), and /api/machine/disconnect now return 403 and have no side effects.
  • This change touches src/client/machine-listener.ts and the corresponding focused tests in tests/client-machine-listener.test.ts only, keeping the fix minimal and focused on the authorization boundary.

Testing

  • Ran the focused regression tests with ./node_modules/.bin/bun test tests/client-machine-listener.test.ts and they passed (all assertions updated to expect 403 for blocked mutations).
  • Ran ./node_modules/.bin/bun run typecheck and ./node_modules/.bin/bun run privacy:scan, both succeeded.
  • Attempted the full repository test run (./node_modules/.bin/bun run test) but observed unrelated environment- and integration-level failures and timeouts in unrelated suites; the full-suite run was therefore not used as the primary validation for this focused security fix.

Codex Task

lidge-jun and others added 20 commits August 25, 2026 10:36
release: promote dev into main for v2.32.1
# Conflicts:
#	package.json
[WRONG BRANCH] merge dev into main for the v2.33.0 release
Promotes the dev integration line onto main. The resulting tree is byte-identical
to origin/dev, including package.json at 2.34.0.

The package.json conflict is resolved to dev's side, NOT to main's stale 2.33.0.
Earlier promotions (lidge-jun#2553, lidge-jun#2507) kept the target's version so the release bump
would land on its own "release: vX.Y.Z" commit. That is no longer legal: this very
delta adds tests/release-version-line.test.ts, which fails when the in-tree version
sits behind the highest release tag. With v2.34.0-preview.20260827 now published,
2.33.0 orders behind it, so a promotion carrying the stale line turns CI red on
every shard that runs the suite.

The consequence for the release step is that scripts/release.ts skips the bump
(release.ts:568, currentVersion === version), so v2.34.0 gets tagged on this merge
commit rather than on a separate release commit. The workflow creates the tag itself
after publishing and validates expected-sha against the checked-out commit, so the
tag still names exactly the audited tree.
[WRONG BRANCH] promote dev onto main for v2.34.0
[WRONG BRANCH] promote dev onto main for v2.35.0
[WRONG BRANCH] promote dev onto main for v2.36.0
[WRONG BRANCH] promote dev to main for the v2.37.0 release
[WRONG BRANCH] promote dev onto main for v2.38.0
[WRONG BRANCH] promote dev onto main for v2.39.0
…rkflow call (lidge-jun#3262)

Both v2.40.0 release dispatches (33615174183 preview, 33615177849 main) died
at startup_failure: a workflow_call cannot grant its callee more than the
calling job holds, and dev-version-bump.yml's job declares contents+pull-
requests write. lidge-jun#3129 wired the call but never dispatched a release, so this
is its first live run. The caller job now declares exactly the callee's two
permissions; no other job in release.yml gains anything.

Co-authored-by: jun <jun@lidge.dev>
(cherry picked from commit 7ce0ba5)
…400-relfix

release: carry the release.yml permissions fix onto main for v2.40.0
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github-actions Bot commented Sep 3, 2026

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Deterministic PR hygiene checks passed.

@github-actions github-actions Bot added the bug Something isn't working label Sep 3, 2026
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coderabbitai Bot commented Sep 3, 2026

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@github-actions github-actions Bot changed the title security: block loopback-bootstrapped GUI sessions from mutating machine state [WRONG BRANCH] security: block loopback-bootstrapped GUI sessions from mutating machine state Sep 3, 2026
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✅ READY

  • all PR quality gates passed.

Hygiene

Deterministic PR hygiene checks passed.

@github-actions
github-actions Bot marked this pull request as draft September 3, 2026 05:50

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💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 88613a259d

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

Comment on lines +119 to +120
if (req.method !== "GET" && req.method !== "HEAD") {
return Response.json({ error: "opencodex machine changes require the local CLI" }, { status: 403 });

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P1 Badge Retire dashboard controls that this guard makes unusable

When the dashboard is served by a connected client, it still exposes actions that POST to these machine endpoints: disconnect in gui/src/App.tsx:221-227, sync in gui/src/pages/Integrations.tsx:72-80, and shim repair/removal in gui/src/pages/Startup.tsx:105-117. This unconditional method guard makes every one of those controls return 403 for every connected-dashboard user; sync and shim actions silently do nothing, while disconnect reports an error. Remove or disable the controls for connected clients and direct users to the corresponding CLI commands, with the user-facing behavior documented.

AGENTS.md reference: AGENTS.md:L343-L344

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Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review Status Commit Review trigger
📝 Code Review Completed 2026-09-03T05:52:46.420864Z 88613a2 PR opened
ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

@luvs01 luvs01 changed the title [WRONG BRANCH] security: block loopback-bootstrapped GUI sessions from mutating machine state security: block loopback-bootstrapped GUI sessions from mutating machine state Sep 3, 2026
@luvs01
luvs01 changed the base branch from main to dev September 3, 2026 06:21
@github-actions
github-actions Bot marked this pull request as ready for review September 3, 2026 06:27
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