@@ -0,0 +1,18 @@
+---
+'@objectstack/service-storage': minor
+---
+
+fix(service-storage)!: the upload commit, chunked-completion and progress doors act only for the user who started the upload
+
+Clause-②: no (narrowing)
+
+<!-- adr-0087: not-required (no-migration-prescription) A runtime authorization narrowing at three storage upload doors, not a metadata change: no spec key, export, option, response field or stored shape is removed, renamed or re-shaped, so there is no tombstone and nothing for `objectstack migrate meta` to rewrite. What narrows is which callers those doors act for: a caller who is not the file's uploader is now refused, while the uploader is answered as before. The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id covers these doors and this diff adds none (not registered / already-registered); and no published interface or type changes (not runtime-interface-only / type-surface-only). -->
+
+**BREAKING** (an accept-set narrowing), shipped as `minor` under the launch-window convention for breaking changes.
+
+`POST /api/v1/storage/upload/complete`, `POST /api/v1/storage/upload/chunked/:uploadId/complete` and `GET /api/v1/storage/upload/chunked/:uploadId/progress` now act only for the user who started the upload. The rule is declared once and each of the three doors consults it: the signed-in user must be the file's `owner_id`, which both upload-start doors already stamp from the session. A chunked upload reaches its uploader through its file.
+
+- **Refused now:** every other caller, with `403 PERMISSION_DENIED`. The answer is the same whichever organization the caller acts in, and it comes before anything is written or returned. There is no administrator exception. A file with no recorded uploader, or a chunked upload whose file is gone, is refused the same way rather than given a guessed owner.
+- **Unchanged:** the uploader's own calls, who may start an upload, who may download a file (the download doors' own authorization), the organization the doors stamp and scope by, and the not-found answers. A deployment with no `auth` service, whose upload routes run without a session resolver, keeps them open as before.
+
+What changes for you: complete and poll an upload as the same signed-in user who started it. An upload left pending with no recorded uploader cannot be committed; start it again.
@@ -31,6 +31,8 @@
     "@objectstack/objectql": "workspace:*",
     "@objectstack/plugin-security": "workspace:*",
     "@objectstack/rest": "workspace:*",
+    "@objectstack/service-storage": "workspace:*",
+    "@objectstack/verify": "workspace:*",
     "@types/node": "^26.6.3",
     "tsx": "^4.23.15",
     "typescript": "^6.0.3",
 
@@ -0,0 +1,302 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * #22046 (ruling B and its addendum) — the storage upload doors' ownership
+ * rule, measured on a BOOTED organization wall.
+ *
+ * `@objectstack/service-storage` declares one ownership rule (`isFileUploader`)
+ * that three upload doors consult after their by-id read and before any write
+ * or disclosure: the commit door, the chunked-completion door and the progress
+ * door. Its own suite pins the rule per door. What that suite cannot boot is
+ * the organization wall, and the ruling's addendum asks for exactly that: per
+ * door, a caller acting in ANOTHER organization, naming an upload it did not
+ * start, is answered `403 PERMISSION_DENIED` with the same body as a caller in
+ * the uploader's own organization — and the by-id read that precedes the rule
+ * discloses nothing and writes nothing across the wall.
+ *
+ * ## Why this file lives in THIS package
+ *
+ * The wall is raised by this package's `OrganizationsPlugin` (the `org-scoping`
+ * registrar the `tenancy` service probes). ADR-0132's entitlement boundary
+ * forbids every other workspace package from declaring
+ * `@objectstack/organizations` (`no-framework-dependents.pin.test.ts`), so the
+ * storage package — and the dogfood package, whose multi-organization blocks
+ * skip for the same reason — cannot mount it. The boundary is asymmetric: this
+ * package may depend on framework packages freely, so the measurement comes
+ * here rather than the plugin going there. It is the smallest package that
+ * boots the wall.
+ *
+ * ## What is real
+ *
+ * `bootStack` (`@objectstack/verify`): an `ObjectKernel` over in-process
+ * SQLite, the Hono app every request below is injected through, the real
+ * `AuthPlugin` (better-auth sessions, organizations, invitations) and
+ * `SecurityPlugin`. THIS package's `OrganizationsPlugin` and the real
+ * `StorageServicePlugin` are mounted the way a host mounts them. The walled
+ * posture is REQUESTED through `OS_TENANCY_POSTURE=isolated` and read back off
+ * the `tenancy` service the boot resolved — not assumed. The three callers are
+ * made through the product's own doors: the seeded platform owner, a colleague
+ * invited into the owner's organization who accepted, and an outsider who
+ * created an organization of their own. Nothing is stubbed.
+ *
+ * The rows each door names are read back through the engine as SYSTEM, whole,
+ * before and after every refused call, and compared column for column — that is
+ * "writes nothing". "Discloses nothing" is the refusal body: one code, one
+ * status, and nothing about the row.
+ */
+
+import { describe, it, expect, beforeAll, afterAll } from 'vitest';
+import { mkdtempSync, rmSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { bootStack, type VerifyStack } from '@objectstack/verify';
+import { StorageServicePlugin } from '@objectstack/service-storage';
+import { OrganizationsPlugin } from './organizations-plugin.js';
+
+const APP = {
+  manifest: {
+    id: 'com.example.uploadwall',
+    namespace: 'uploadwall',
+    version: '0.0.1',
+    type: 'app',
+    name: 'Upload Door Wall Fixture',
+  },
+  objects: [],
+};
+
+const SYS = { context: { isSystem: true } } as const;
+
+const COLLEAGUE_EMAIL = 'upload-wall-colleague@verify.test';
+const OUTSIDER_EMAIL = 'upload-wall-outsider@verify.test';
+
+interface Answer {
+  status: number;
+  body: any;
+}
+
+describe('the upload doors on a booted organization wall (#22046)', () => {
+  const restoreEnv: Array<[string, string | undefined]> = [];
+  let rootDir: string;
+  let stack: VerifyStack;
+  let ql: any;
+  /** The seeded platform owner — every upload below is theirs. */
+  let uploader: string;
+  /** Invited into the uploader's organization; not the uploader. */
+  let colleague: string;
+  /** Acting in an organization of their own. */
+  let outsider: string;
+  let uploaderOrg: string;
+  let outsiderOrg: string;
+
+  const answer = async (res: Response): Promise<Answer> => ({
+    status: res.status,
+    body: await res.json().catch(() => undefined),
+  });
+  const activeOrganization = async (token: string): Promise<string | null> => {
+    const res = await stack.apiAs(token, 'GET', '/auth/get-session');
+    return ((await res.json()) as any)?.session?.activeOrganizationId ?? null;
+  };
+  const stored = (object: string, id: string) => ql.findOne(object, { where: { id } }, SYS);
+
+  const presign = async (): Promise<string> => {
+    const res = await answer(
+      await stack.apiAs(uploader, 'POST', '/storage/upload/presigned', {
+        filename: 'wall-plan.txt',
+        mimeType: 'text/plain',
+        size: 5,
+      }),
+    );
+    expect(res.status).toBe(200);
+    return res.body.data.fileId;
+  };
+  const startChunked = async (): Promise<{ uploadId: string; fileId: string }> => {
+    const res = await answer(
+      await stack.apiAs(uploader, 'POST', '/storage/upload/chunked', {
+        filename: 'wall-chunked.bin',
+        mimeType: 'application/octet-stream',
+        totalSize: 10,
+      }),
+    );
+    expect(res.status).toBe(200);
+    return { uploadId: res.body.data.uploadId, fileId: res.body.data.fileId };
+  };
+
+  /** The one refusal: code and status, and nothing about the row. */
+  const expectRefused = (res: Answer, secrets: string[], label: string) => {
+    expect(res.status, label).toBe(403);
+    expect(res.body?.success, label).toBe(false);
+    expect(res.body?.error?.code, label).toBe('PERMISSION_DENIED');
+    expect(res.body?.data, label).toBeUndefined();
+    const text = JSON.stringify(res.body);
+    for (const s of secrets) expect(text.includes(s), `${label}: ${s}`).toBe(false);
+  };
+
+  beforeAll(async () => {
+    for (const [name, value] of [
+      ['OS_TENANCY_POSTURE', 'isolated'],
+      // A walled deployment must declare what a new user joins, or this
+      // package's own boot gate refuses it.
+      ['OS_AUTH_MEMBERSHIP_POLICY', 'invite-only'],
+    ] as const) {
+      restoreEnv.push([name, process.env[name]]);
+      process.env[name] = value;
+    }
+    rootDir = mkdtempSync(join(tmpdir(), 'upload-wall-'));
+    stack = await bootStack(APP as never, {
+      extraPlugins: [
+        new OrganizationsPlugin(),
+        new StorageServicePlugin({ adapter: 'local', local: { rootDir }, bindToSettings: false }),
+      ],
+    });
+    ql = await stack.kernel.getServiceAsync('objectql');
+
+    uploader = await stack.signIn();
+    uploaderOrg = (await activeOrganization(uploader))!;
+
+    colleague = await stack.signUp(COLLEAGUE_EMAIL);
+    const invited = await answer(
+      await stack.apiAs(uploader, 'POST', '/auth/organization/invite-member', {
+        email: COLLEAGUE_EMAIL,
+        role: 'member',
+        organizationId: uploaderOrg,
+      }),
+    );
+    expect(invited.status).toBe(200);
+    const accepted = await stack.apiAs(colleague, 'POST', '/auth/organization/accept-invitation', {
+      invitationId: invited.body.id,
+    });
+    expect(accepted.status).toBe(200);
+    expect((await stack.apiAs(colleague, 'POST', '/auth/organization/set-active', { organizationId: uploaderOrg })).status).toBe(200);
+
+    outsider = await stack.signUp(OUTSIDER_EMAIL);
+    const created = await answer(
+      await stack.apiAs(outsider, 'POST', '/auth/organization/create', { name: 'Upload Wall Other', slug: 'upload-wall-other' }),
+    );
+    expect(created.status).toBe(200);
+    outsiderOrg = created.body.id;
+  }, 120_000);
+
+  afterAll(async () => {
+    await stack?.stop();
+    if (rootDir) rmSync(rootDir, { recursive: true, force: true });
+    for (const [name, value] of restoreEnv.reverse()) {
+      if (value === undefined) delete process.env[name];
+      else process.env[name] = value;
+    }
+  });
+
+  it('PREMISE: the wall is up, and the three callers sit where the pins say they do', async () => {
+    const tenancy: any = await stack.kernel.getServiceAsync('tenancy');
+    expect(tenancy.posture).toBe('isolated');
+    expect(tenancy.isolationActive).toBe(true);
+    expect(tenancy.degraded).toBe(false);
+
+    expect(uploaderOrg).toBeTruthy();
+    expect(await activeOrganization(colleague)).toBe(uploaderOrg);
+    expect(await activeOrganization(outsider)).toBe(outsiderOrg);
+    expect(outsiderOrg).not.toBe(uploaderOrg);
+
+    // The rows the doors act on are stamped into the uploader's organization —
+    // the wall the outsider is on the far side of.
+    const fileId = await presign();
+    const row = await stored('sys_file', fileId);
+    expect(row.organization_id).toBe(uploaderOrg);
+    expect(row.owner_id).toBeTruthy();
+    const { uploadId } = await startChunked();
+    expect((await stored('sys_upload_session', uploadId)).organization_id).toBe(uploaderOrg);
+  });
+
+  describe('the commit door', () => {
+    const commit = (token: string, fileId: string, eTag: string) =>
+      stack.apiAs(token, 'POST', '/storage/upload/complete', { fileId, eTag });
+
+    it('SAME ORGANIZATION: a colleague is refused 403 PERMISSION_DENIED, and the row is unchanged', async () => {
+      const fileId = await presign();
+      const before = await stored('sys_file', fileId);
+      expectRefused(await answer(await commit(colleague, fileId, 'etag-colleague')), ['wall-plan', fileId, uploaderOrg], 'colleague');
+      expect(await stored('sys_file', fileId)).toEqual(before);
+    });
+
+    it('ANOTHER ORGANIZATION: an outsider gets the colleague’s body, and the row is unchanged', async () => {
+      const fileId = await presign();
+      const before = await stored('sys_file', fileId);
+      const cross = await answer(await commit(outsider, fileId, 'etag-outsider'));
+      expectRefused(cross, ['wall-plan', fileId, uploaderOrg], 'outsider');
+      expect(await stored('sys_file', fileId)).toEqual(before);
+      expect(cross).toEqual(await answer(await commit(colleague, fileId, 'etag-colleague')));
+    });
+
+    it('POSITIVE: the uploader commits', async () => {
+      const fileId = await presign();
+      const own = await answer(await stack.apiAs(uploader, 'POST', '/storage/upload/complete', { fileId, eTag: 'etag-uploader' }));
+      expect(own.status).toBe(200);
+      expect(own.body.data.fileId).toBe(fileId);
+      const row = await stored('sys_file', fileId);
+      expect(row.status).toBe('committed');
+      expect(row.etag).toBe('etag-uploader');
+    });
+  });
+
+  describe('the chunked-completion door', () => {
+    const complete = (token: string, uploadId: string) =>
+      stack.apiAs(token, 'POST', `/storage/upload/chunked/${uploadId}/complete`, { parts: [] });
+
+    it('SAME ORGANIZATION: a colleague is refused 403 PERMISSION_DENIED, and neither row moves', async () => {
+      const { uploadId, fileId } = await startChunked();
+      const sessionBefore = await stored('sys_upload_session', uploadId);
+      const fileBefore = await stored('sys_file', fileId);
+      expectRefused(await answer(await complete(colleague, uploadId)), ['wall-chunked', fileId, uploaderOrg], 'colleague');
+      expect(await stored('sys_upload_session', uploadId)).toEqual(sessionBefore);
+      expect(await stored('sys_file', fileId)).toEqual(fileBefore);
+    });
+
+    it('ANOTHER ORGANIZATION: an outsider gets the colleague’s body, and neither row moves', async () => {
+      const { uploadId, fileId } = await startChunked();
+      const sessionBefore = await stored('sys_upload_session', uploadId);
+      const fileBefore = await stored('sys_file', fileId);
+      const cross = await answer(await complete(outsider, uploadId));
+      expectRefused(cross, ['wall-chunked', fileId, uploaderOrg], 'outsider');
+      expect(await stored('sys_upload_session', uploadId)).toEqual(sessionBefore);
+      expect(await stored('sys_file', fileId)).toEqual(fileBefore);
+      expect(cross).toEqual(await answer(await complete(colleague, uploadId)));
+    });
+
+    it('POSITIVE: the uploader completes', async () => {
+      const { uploadId, fileId } = await startChunked();
+      const own = await answer(await stack.apiAs(uploader, 'POST', `/storage/upload/chunked/${uploadId}/complete`, { parts: [] }));
+      expect(own.status).toBe(200);
+      expect(own.body.data.fileId).toBe(fileId);
+      expect((await stored('sys_upload_session', uploadId)).status).toBe('completed');
+      expect((await stored('sys_file', fileId)).status).toBe('committed');
+    });
+  });
+
+  describe('the progress door', () => {
+    const progress = (token: string, uploadId: string) =>
+      stack.apiAs(token, 'GET', `/storage/upload/chunked/${uploadId}/progress`);
+
+    it('SAME ORGANIZATION: a colleague is refused 403 PERMISSION_DENIED, shown nothing, and the row is unchanged', async () => {
+      const { uploadId, fileId } = await startChunked();
+      const before = await stored('sys_upload_session', uploadId);
+      expectRefused(await answer(await progress(colleague, uploadId)), ['wall-chunked', fileId, uploaderOrg], 'colleague');
+      expect(await stored('sys_upload_session', uploadId)).toEqual(before);
+    });
+
+    it('ANOTHER ORGANIZATION: an outsider gets the colleague’s body, shown nothing, and the row is unchanged', async () => {
+      const { uploadId, fileId } = await startChunked();
+      const before = await stored('sys_upload_session', uploadId);
+      const cross = await answer(await progress(outsider, uploadId));
+      expectRefused(cross, ['wall-chunked', fileId, uploaderOrg], 'outsider');
+      expect(await stored('sys_upload_session', uploadId)).toEqual(before);
+      expect(cross).toEqual(await answer(await progress(colleague, uploadId)));
+    });
+
+    it('POSITIVE: the uploader reads its progress', async () => {
+      const { uploadId, fileId } = await startChunked();
+      const own = await answer(await stack.apiAs(uploader, 'GET', `/storage/upload/chunked/${uploadId}/progress`));
+      expect(own.status).toBe(200);
+      expect(own.body.data.fileId).toBe(fileId);
+      expect(own.body.data.filename).toBe('wall-chunked.bin');
+    });
+  });
+});
@@ -10,7 +10,7 @@ export default defineConfig({
     // fix (#7668/#7778); registering the package in that gate's unaliased
     // ledger is explicitly NOT — the ledger is shrink-only.
     //
-    // The three entries, and why each one is a VALUE reach rather than a type
+    // Some of the entries, and why each one is a VALUE reach rather than a type
     // reach (a `import type` is erased before anything resolves and needs no
     // alias):
     //   - `@objectstack/plugin-auth` — `organizations-plugin.ts` imports
@@ -27,6 +27,11 @@ export default defineConfig({
     //     `walled-default-org-self-registrant.pin.test.ts`, whose subject is
     //     exactly which principal the default-org bootstrap treats as the
     //     declared owner.
+    //   - `@objectstack/service-storage` and `@objectstack/verify` — the
+    //     `StorageServicePlugin` and `bootStack` that
+    //     `storage-upload-door-ownership.wall.test.ts` boots the walled stack
+    //     with (#22046). The storage upload doors ARE that file's subject, so a
+    //     `dist/` copy behind the source would measure an older door.
     //
     // ANCHORED regex, array form, deliberately: a bare string `find` matches by
     // PREFIX, so with a FILE replacement it would also swallow a subpath and
@@ -88,6 +93,14 @@ export default defineConfig({
         find: /^@objectstack\/driver-sqlite-wasm$/,
         replacement: path.resolve(__dirname, '../../drivers/driver-sqlite-wasm/src/index.ts'),
       },
+      {
+        find: /^@objectstack\/service-storage$/,
+        replacement: path.resolve(__dirname, '../../services/service-storage/src/index.ts'),
+      },
+      {
+        find: /^@objectstack\/verify$/,
+        replacement: path.resolve(__dirname, '../../verify/src/index.ts'),
+      },
     ],
   },
   test: {
@@ -100,5 +113,11 @@ export default defineConfig({
     disableConsoleIntercept: true,
     environment: 'node',
     include: ['src/**/*.test.ts'],
+    // #13517: quiet the registry's per-item registration chatter — the
+    // engine's own `OS_REGISTRY_LOG` seam, not a change to its shipped
+    // default. Enforced by scripts/check-registry-log-declared.mjs, since
+    // `storage-upload-door-ownership.wall.test.ts` boots a stack through
+    // `@objectstack/verify`'s `bootStack`.
+    env: { OS_REGISTRY_LOG: 'warn' },
   },
 });