fix: keep global settings out of non-admin data exports (GHSA-v3vp-ffww-q7pw)

src/backend/database/database.ts

@@ -81,6 +81,10 @@ import {
 } from "./repositories/factory.js";
 import { withCurrentSqliteForeignKeysDisabled } from "./repositories/sqlite-foreign-keys.js";
 import { applyPluginHostImportSettings } from "./routes/host-plugin-settings.js";
+import {
+  selectExportableSettings,
+  type SettingData,
+} from "../utils/export-settings.js";
 import {
   keepUsableProtocolCredentials,
   listProtocolLogins,
@@ -107,19 +111,9 @@ const requireAdmin = authManager.createAdminMiddleware();
 app.use(createCompressionMiddleware());
 app.use(createCorsMiddleware());
 
-type SettingData = {
-  key: string;
-  value: string;
-};
-
-function shouldExportSetting(key: string): boolean {
-  return !key.startsWith("reset_code_") && !key.startsWith("temp_reset_token_");
-}
-
-async function getExportableSettings(): Promise<SettingData[]> {
+async function getExportableSettings(isAdmin: boolean): Promise<SettingData[]> {
   const settingsRows = await createCurrentSettingsRepository().listAll();
-
-  return settingsRows.filter((setting) => shouldExportSetting(setting.key));
+  return selectExportableSettings(settingsRows, isAdmin);
 }
 
 function writeSettingsToExportDatabase(
@@ -1047,7 +1041,10 @@ app.post("/database/export", authenticateJWT, async (req, res) => {
         );
       }
 
-      writeSettingsToExportDatabase(exportDb, await getExportableSettings());
+      writeSettingsToExportDatabase(
+        exportDb,
+        await getExportableSettings(!!user.isAdmin),
+      );
       await writeHostDefaultsToExport(exportDb, userId);
     } finally {
       exportDb.close();

src/backend/tests/utils/export-settings.test.ts

@@ -0,0 +1,23 @@
+import { describe, expect, it } from "vitest";
+import { selectExportableSettings } from "../../utils/export-settings.js";
+
+const rows = [
+  { key: "allow_registration", value: "true" },
+  { key: "audit_log_forward_token", value: "secret" },
+  { key: "reset_code_alice", value: "123456" },
+  { key: "temp_reset_token_alice", value: "abc" },
+  { key: "user_dek_v3_u1", value: "{}" },
+];
+
+describe("selectExportableSettings", () => {
+  it("gives a non-admin export no global settings", () => {
+    expect(selectExportableSettings(rows, false)).toEqual([]);
+  });
+
+  it("keeps instance config for admins but drops secrets", () => {
+    expect(selectExportableSettings(rows, true).map((r) => r.key)).toEqual([
+      "allow_registration",
+      "user_dek_v3_u1",
+    ]);
+  });
+});

src/backend/utils/export-settings.ts

@@ -0,0 +1,26 @@
+export type SettingData = {
+  key: string;
+  value: string;
+};
+
+const SECRET_SETTING_PREFIXES = [
+  "reset_code_",
+  "temp_reset_token_",
+  "audit_log_forward_token",
+];
+
+/**
+ * Global settings are instance config, not user data: only an admin's export
+ * carries them (import only applies them for admins anyway), and never the
+ * one-time reset codes or the audit forwarding token.
+ */
+export function selectExportableSettings(
+  rows: SettingData[],
+  isAdmin: boolean,
+): SettingData[] {
+  if (!isAdmin) return [];
+  return rows.filter(
+    (row) =>
+      !SECRET_SETTING_PREFIXES.some((prefix) => row.key.startsWith(prefix)),
+  );
+}