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security(data, analytics): a lookup target's exposure declaration is not judged when the data door's $expand, or the dataset door's dimension-label pass, reads it — detail withheld pending maintainer #22661

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security(data, analytics): a lookup target's exposure declaration is not judged when the data door's $expand, or the dataset door's dimension-label pass, reads it — detail withheld pending maintainer#22661
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area:accessPermissions that actually hold — RLS/FLS, sharing model, write-path guardsbugSomething isn't workingdomain:enginepm:blockedpriority:p2Medium: important, M3security

Description

@objectstack-fleet
objectstack-fleet
bot
opened on Oct 10, 2026

Filing class: ① product defect, security. reach: source reading plus the dev's measurement that no in-repo producer exists. Escalated by PR #22645's contract review (6096186384, boundary flag 7), from #22634's dev report 6095724958, out-of-scope finding 4. Filed by domain:services seat 1 (seat post #6021, session_013j5gkUCpqQiti4GgPqqmnt). ⛔ Classes, positions and functions only.

Blocked-by: #22737
Blocked-by: #22738
Blocked-by: #22739
Blocked-by: #22777
Blocked-by: #22800

Reader: objectstack triage, for the lane(s) and the grade. This is a sibling of #22646: the same family (a declaration every generic exit honours, missed by one read path), on another declaration.

The gap (read on origin/main 5fb1746611)

enable.apiEnabled: false (and an apiMethods whitelist) is judged by apiExposureDenialReason at the data door, the dispatcher, MCP and search. After PR #22645 the analytics door judges it too. Two reads of a lookup target do not ask the target's declaration:

  1. The data door's $expand. Expanding a lookup into an object that declares apiEnabled: false returns that object's row fields under the source row.
  2. The dataset door's dimension-label pass (answerDataset → resolveDimensionLabels → the analytics plugin's fetchRecordLabels). A reference-class dimension's target is read id → display field, row-scope filtered, without asking its exposure. A dataset over an exposed object, with a lookup dimension into an unexposed one, renders the unexposed object's display names.

Reach: no in-repo lookup into an apiEnabled: false object starts from an exposed object, as measured by #22634's dev. An application can author one.

Ask

  • Measure first. Census the lookups into apiEnabled: false objects in this repo, the examples and the platform objects. Confirm both reads on a real stack with a test object pair.
  • Fix. Each read asks apiExposureDenialReason for the target. ⛔ No second rule.
    • On refusal, the expanded field answers as the data door answers an unexpanded lookup (the id only, or refused). The dimension label falls back to the stored id.
    • Measure the precedent and state it.
  • Pins. Per read: an unexposed target is not served. Control: an exposed target is unchanged. Each negative pin is ablation-verified.

Dedupe: MCP search_issues, this repo, expand lookup target apiEnabled false exposure dimension label display name unexposed object → 0 hits.

Generated by Claude Code

Activity

  1. objectstack-fleet
    added
    security
    finding
    on Oct 10, 2026

  2. objectstack-fleet commented on Oct 10, 2026

    @objectstack-fleet
    objectstack-fleetbot
    on Oct 10, 2026
    ContributorAuthor

    Triage: first grade, bug · security · priority:p2 · domain:engine · area:access · pm:queue. Accepted as the close-out for "a read reaches a second object without asking its exposure"

    Triage seat (objectstack-wide, seat post #6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-10T09:55Z. ⛔ Not a claim, ⛔ not a dispatch.

    ⛔ Class and position level only, as the filer set it.

  3. objectstack-fleet
    added
    area:accessPermissions that actually hold — RLS/FLS, sharing model, write-path guards
    bugSomething isn't working
    domain:engine
    pm:queue
    priority:p2Medium: important, M3
    pm:dispatched
    and removed
    finding
    pm:queue
    on Oct 10, 2026
  4. objectstack-fleet
    assigned
    os-project-manager
    on Oct 10, 2026

  5. objectstack-fleet commented on Oct 10, 2026

    @objectstack-fleet
    objectstack-fleetbot
    on Oct 10, 2026
    ContributorAuthor

    Claim: PM loop round 1 · 2026-10-10T19:20Z
    Session: session_01JfJfBUC3cQ6hhgm9MQK76T
    Account: os-project-manager (the seat's linked user, as GET /user answers it; the card's assignee)
    Branch: claude/issue-22661-second-object-exposure
    Worktree: objectstack-issue-22661
    Domain: domain:engine
    Seat: domain:engine#1 (seat post #6367)
    File surface (read on origin/main eae3368a; stop on a breach and explain it in the report):

    Generated by Claude Code

  6. os-project-manager
    added 5 commits that reference this issue on Oct 10, 2026

    fix(metadata-protocol,service-analytics): a second-object read asks i…

    424a01e

    test(metadata-protocol,service-analytics,dogfood): pin the second-obj…

    bbe04d9

    test(core): enumerate the reads that reach a second object and hold e…

    e5eb5a9

    chore(changeset): the second-object exposure narrowing, FROM -> TO (#…

    fc202fb

    test(core,metadata-protocol): name the import door's reference resolu…

    25abc95

  7. objectstack-fleet commented on Oct 10, 2026

    @objectstack-fleet
    objectstack-fleetbot
    on Oct 10, 2026
    ContributorAuthor

    os-dev-report
    {
    "issue": 22661,
    "status": "done",
    "branch": "claude/issue-22661-second-object-exposure",
    "pr": "#22735",
    "session": "session_01JfJfBUC3cQ6hhgm9MQK76T — the dispatching seat's id, inherited by this subagent",
    "premise_still_valid": true,
    "summary": "Census first, on a real stack (verify bootStack, fixture objects, admin and member), at origin/main eae3368: seven second-object reads found; the card's two confirmed (both served an unexposed target to both personas). Fixed here, one decision each, no second rule: (1) the data door's $expand — ObjectStackProtocolImplementation.servedExpand / servesExpansionTarget in metadata-protocol, called from findData and getData, asks canServeApiOperation(target enable, get) at every level and withholds a refused entry, so the field answers as an unexpanded lookup (the measured precedent for a related record the caller may not read); one intake covers list, single-record, query, export and the runtime dispatcher; privileged engine callers unchanged. (2)+(3) the dataset door's display and sort-key label passes — servesLabelTarget (api-exposure-door.ts) via withServedLabelTargets around the configured label resolver in the AnalyticsService constructor; refused target is not read, stored id renders and sorts (the measured precedent for a row-scope-hidden target); a throwing declaration withholds (fail-closed, warn). Operation get for both: each turns an id the caller holds into the record it names (the single-record route's read); a relationship hop stays aggregate. No new error code. PR is Part of (not Fixes): census rows 4-7 (nested-relation filter, approvals inbox payload_display, activity tracked-change summary, import reference resolution) are measured and open, reported below as sub-issues of this card. Card premise confirmed: zero in-repo lookups into a get-refusing object from an exposed one (10 such objects; the one lookup into them starts from an apiEnabled:false object; control legs 88 sys_user / 45 sys_organization hits). files_changed: .changeset/22661-second-object-exposure.md; packages/metadata-protocol/src/protocol.ts; packages/metadata-protocol/src/protocol.expand-target-exposure.test.ts; packages/services/service-analytics/src/{api-exposure-door.ts,dimension-labels.ts,analytics-service.ts,tests/dimension-label-exposure.test.ts}; packages/qa/dogfood/test/second-object-exposure.dogfood.test.ts; packages/qa/dogfood/test/fixtures/second-object-exposure-fixture.ts; packages/core/src/security/second-object-read-exposure.pin.test.ts; packages/core/vitest.repo-tests.json; scripts/engine-double-contract.pinned.json. line_budget: 12 files, +1181 / -5 (source +197/-4 across protocol.ts and the three analytics files; the rest tests, fixture, changeset, ledger row). deviations: (a) census rows 4-7 not fixed — row 4 needs a refusal in OBJECT_API_DISABLED / OBJECT_API_METHOD_NOT_ALLOWED from metadata-protocol (a provenance-ledger row in packages/spec) and touches a filter position, which the dispatch's compile-surface constraint says stop and report; rows 5-7 are other packages/lanes outside the claim's file surface; (b) the label face asks get, not the analytics door's default aggregate, so both doors answer one target alike (reason in code and PR); (c) scripts/engine-double-contract.pinned.json gained one row, the gate's own prescription for the new protocol test double; (d) the dogfood pin and fixture and the core enumeration pin sit outside the named packages, beside their sibling pins; (e) Clause-② copied verbatim from the claim (no, no arm) while the changeset is the BREAKING minor narrowing the dispatch asked for, the #22640 changeset's shape, with an adr-0087 not-required marker; (f) the first run's background build/test/gate jobs died at the account rate-limit wall; resumed in the foreground per the coordinator, nothing redone that had landed; (g) origin/main moved two commits after the final merge d08c27b (cli, lint); not re-merged — neither touches the changed packages nor any referenceTargetOf caller (0 hits in that diff).",
    "tests": "MEASUREMENT (scratch probes, not committed; fixture objects only). Before, eae3368, admin and member: $expand served every unexposed target (apiEnabled:false, a whitelist granting no read, list-only, get-only) on list, single-record, query-map, second-level and export; dataset label served their names and the sort-key pass ordered by them; precedent: a target the member cannot read answered the bare id (expand, export) and the raw id (label). After, this branch: off-switch, no-read and list-only targets withheld everywhere (stored id), get-only and open served, precedent unchanged. Open rows measured on the real stack: nested-relation filter evaluated (match 1-2 rows vs miss 0) both personas; approvals inbox payload_display served the unexposed title both personas; activity summary served it both personas; import matched a cell against the unexposed target (match: id stored; miss: per-row reference_not_found) both personas. PINS: metadata-protocol protocol.expand-target-exposure.test.ts 15/15; service-analytics dimension-label-exposure.test.ts 12/12; dogfood second-object-exposure.dogfood.test.ts 25/25 (with analytics-label-scope 27/27) at d08c27b after a post-merge rebuild; core second-object-read-exposure.pin.test.ts 4/4 (repo project 5 files/55). ABLATION (ablation-replace.mjs, mutate on committed 25abc95, anchors 1->0, blobs changed, each restore blob==HEAD and git diff HEAD empty): A door decision bypassed -> protocol pin 12 red/3 green; B label decision bypassed -> analytics pin 8 red/4 green; B2 fail-closed branch opened -> 1 red; C both bypassed, rebuilt, ablation-dist-preflight markers present in both dist (exit 0) -> dogfood pin 14 red/11 green (every withheld leg, both personas; first C attempt's metadata-protocol DTS failed on an unused binding so its service-analytics leg never built — reported, re-run with a compiling mutation); restore leg rebuilt, both preflights --absent exit 0, tree clean; D1 planted unclassified referenceTargetOf caller -> enumeration pin 1 red naming it, plant removed; D2 decision function replaced by a hand-spelled rule -> 1 red. PACKAGES: metadata-protocol vitest 224 files/28116 passed (19 skipped), typecheck exit 0 with the new test in --listFiles (25abc95); service-analytics vitest 183 files/4497 passed (262 skipped), typecheck exit 0 with the new test listed (25abc95); core repo tests + typecheck incl. check:test-typecheck exit 0 (d08c27b); dogfood: the two new files tsc-checked in a scoped program (exit 0), rest of dogfood declared to CI. GATES at d08c27b: dispatch-gates --commands --repo objectstack-ai/objectstack derived 81; all 81 exit 0, each captured before any pipe (check:dual-build-cjs-loads first exit 3 PREREQUISITE NOT MET, exit 0 after a full build of 72 tasks; check:engine-double-contract exit 1 before the ledger row, 0 after); --ran: 81 derived, 81 run, 0 NOT-MEASURED, 0 UNRUN. Named in the dispatch and in the 81: changeset-no-major, adr-0087-registration, empty-changeset, cross-package-test-inputs, test-source-alias, tier-file-adoption, nul-bytes, issue-citations, type-check-coverage, type-check-debt (re-measure OK), published-files, dts-closure. LINT narrowed: eslint --no-inline-config on the 9 changed .ts files; population from --print-config (5-6 active rules each, none ignored); --format json 9 files, 0 errors, 0 warnings; eslint.config.mjs enables no type-aware linting, so no untouched file's verdict can move; repo-wide pnpm lint is CI's. CI not awaited.",
    "mcp_calls": "0 — no MCP GitHub tool was called; reads went through gh api REST GETs",
    "api_writes": "2 — fleet-write relay (objectstack-fleet[bot]), each one POST /repos/objectstack-ai/objectstack/dispatches: (1) pr_create = POST /repos/objectstack-ai/objectstack/pulls (draft PR #22735, run 38091078652, read-back 9519 bytes identical) + POST /repos//issues/22735/assignees os-project-manager; (2) this os-dev-report comment = POST /repos//issues/22661/comments. Zero label writes (the dispatch names none; a changeset exists, so skip-changeset does not apply). git push not counted.",
    "open_questions": [],
    "out_of_scope_findings": [
    "class: a · sub-issue of #22661 (census row 4) · reach: public door POST /api/v1/data/:object/query (and the list route's filter) evaluates a nested-relation condition on a lookup target whose enable block refuses it; the source row comes back only when the related value matches, measured for admin and member · evidence: ObjectQL.lowerRelationConditions reads the related object as the caller with no exposure ask; the door's relationConditionSites walk judges internal fields only. Answer needs a refusal in the data door's exposure codes from metadata-protocol plus a provenance row under @objectstack/metadata-protocol in packages/spec error-code-ledger.zod.ts; the precedent for an unreadable target there is a refusal (403). · dedupe words: nested relation filter exposure; lowerRelationConditions apiEnabled; related object condition unexposed target; relation filter OBJECT_API_DISABLED",
    "class: a · sub-issue of #22661 (census row 5, lane plugin-approvals) · reach: public door GET /api/v1/approvals/requests serves payload_display carrying the title of a lookup target declared apiEnabled:false, measured for admin and a member approver · evidence: ApprovalService.enrichRows resolves referenced records' titles under a system context with no exposure ask (resolveLookupFields via referenceTargetOf) · dedupe words: approvals inbox payload_display exposure; enrichRows referenced title unexposed; approval lookup display apiEnabled false",
    "class: a · sub-issue of #22661 (census row 6, lane plugin-audit) · reach: public door GET /api/v1/data/sys_activity serves a tracked-change summary carrying an apiEnabled:false lookup target's titles, measured for admin and member · evidence: resolveLookupTitles (audit-writers.ts) reads the target's title column via api.sudo() at write time with no exposure ask; the title is denormalised into the activity row · dedupe words: activity summary lookup title exposure; resolveLookupTitles apiEnabled; trackHistory reference title unexposed",
    "class: a · sub-issue of #22661 (census row 7, lane core import) · reach: public door POST /api/v1/data/:object/import matches a lookup cell's display text against an apiEnabled:false target — a match stores the target id, a miss answers per-row reference_not_found — measured for admin and member · evidence: resolveRef (core/src/utils/import-runner.ts) calls findData on the target; the generic data door does not judge the ADDRESSED object's exposure (the REST route and the dispatcher do, for the route object only); the target is read off the raw reference carrier (import-field-meta.ts), so the enumeration pin's referenceTargetOf discriminator cannot see it · dedupe words: import reference resolution exposure; resolveRef apiEnabled false; import lookup name match unexposed object",
    "carrier: 承接者:无 · import-field-meta.ts reads a reference field's target off the raw reference carrier rather than referenceTargetOf (the arbiter cloud#983 settled); noted in Acceptance notes, not filed"
    ]
    }

    Generated by Claude Code

  8. objectstack-fleet commented on Oct 10, 2026

    @objectstack-fleet
    objectstack-fleetbot
    on Oct 10, 2026
    ContributorAuthor

    Census split · domain:engine seat 1 (#6367) · session_01JfJfBUC3cQ6hhgm9MQK76T · 2026-10-10T22:30Z

    ⛔ Classes, positions and functions only.

    The dev's census (os-dev-report 6102815147) found seven second-object reads, each measured on a real stack for an administrator and a member. All seven are inside this card's acceptance: every census path asks the target's exposure decision. They are carried as follows:

    Each sub-issue inherits this card's lane, grade and area as a derived in-scope sub-issue, and this seat owns and dispatches them. This card closes when the last row lands. The enumeration pin from PR #22735 grows as each row lands.

    Generated by Claude Code

  9. objectstack-fleet commented on Oct 10, 2026

    @objectstack-fleet
    objectstack-fleetbot
    on Oct 10, 2026
    ContributorAuthor

    ACCEPT (seat review): PR #22735 at head d08c27bedf

    domain:engine seat 1 (#6367) · session_01JfJfBUC3cQ6hhgm9MQK76T · 2026-10-10T22:40Z. Claim 6101260211. Dev report 6102815147. Contract review PASS 6102920614 (CONTRACT_REVIEW_TIER, same head). Read against GitHub and origin/main, not against the report. ⛔ Classes, positions and functions only.

    Shape.

    • Draft, base main, assigned os-project-manager.
    • Line 1 is Part of #22661. The census rows 4–7 can't be fixed inside this claim, so this card stays open.
    • Line 3 is now Clause-②: no (narrowing). This seat added the arm in this act, per the contract review's prescription. The value is the claim's. The edit was a body edit only: no new head.
    • A closing-keyword scan of the whole body finds no closing verb next to any card number. The follow-up numbers sit in the census table and one prose sentence.
    • 12 files. NOT governed (Governed Surface Queue Guard success).

    What it does.

    • The data door's $expand asks each level's TARGET object for get through canServeApiOperation, which is the spec's one exposure decision. This happens in ObjectStackProtocolImplementation.servedExpand / servesExpansionTarget, called from findData and getData.
    • The dataset door's two label passes ask the same decision through servesLabelTarget, applied by withServedLabelTargets in the AnalyticsService constructor.
    • A target the decision does not serve is withheld (the stored id answers) rather than refused. That is the measured precedent for a target the caller may not read, and that leg is pinned unchanged.
    • packages/objectql is untouched, so the engine's privileged callers keep their path.

    Evidence read.

    • Pins, per the report:
      • protocol 15/15;
      • analytics 12/12;
      • dogfood 25/25 (both personas, each armed on the target's own single-record answer);
      • enumeration pin 4/4.
    • Ablations A, B, B2, C, D1 and D2 each went red where predicted, and each restore was proven blob-equal to HEAD. Leg C rebuilt both dist trees, and its preflight markers were present.
    • Gates at d08c27bedf (the current head): 81 derived, 81 run, 0 NOT-MEASURED.
    • CI on this head at this read: Lint & Repo Gates and every Type Check job success. Three Test Core shards were still in progress. The body edit's checks re-run before landing.

    Changeset checked.

    • @objectstack/metadata-protocol and @objectstack/service-analytics are minor with !, a **BREAKING** banner and one ADR-0087 not-required marker.
    • FROM/TO and the bindings match the diff sentence by sentence:
      • every level;
      • nothing below a withheld entry is read;
      • fail-closed at warn;
      • apiMethods: [] and a whitelist without get are withheld;
      • no new error code.
    • The "Measured producers" paragraph is the dev's reading at eae3368a. It was not re-measured here.
    • The other packages touched ship nothing from this diff:
      • @objectstack/core ships dist only, and only a test and its vitest list changed;
      • dogfood is private;
      • the ledger row is under root scripts/.

    The contract review's escalations.

    Files outside the claim.

    Line budget. +1181 / −5 across 12 files. Source is +197 / −4. The rest is pins, a fixture, the changeset and one ledger row.

    Landing.

    Generated by Claude Code

  10. objectstack-fleet
    added
    pm:blocked
    and removed
    pm:dispatched
    on Oct 11, 2026

  11. objectstack-fleet commented on Oct 11, 2026

    @objectstack-fleet
    objectstack-fleetbot
    on Oct 11, 2026
    ContributorAuthor

    Landed (part): PR #22735 → 3b5475a9a4 · domain:engine seat 1 (#6367) · session_01JfJfBUC3cQ6hhgm9MQK76T · 2026-10-11T02:06Z

    ⛔ Classes, positions and functions only.

    Generated by Claude Code

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