diff --git a/cli/src/__tests__/install-command.test.ts b/cli/src/__tests__/install-command.test.ts
index 620504e348a..9c8c06c1716 100644
--- a/cli/src/__tests__/install-command.test.ts
+++ b/cli/src/__tests__/install-command.test.ts
@@ -10,6 +10,7 @@ import {
   resolveGitInstallRequest,
   resolveGitInstallWorkspacePackages,
   resolveNpmInstallRequest,
+  resolvePublishedVersion,
   runCommandWithDiagnostics,
 } from "../commands/install.js";
 import { uninstallCommand } from "../commands/uninstall.js";
@@ -62,6 +63,15 @@ describe("managed install commands", () => {
     expect(() => resolveNpmInstallRequest({ version: "latest" })).toThrow();
   });
 
+  it("parses npm view version output from npm 11 and npm 12", async () => {
+    for (const stdout of ['"2026.916.1"\n', '[\n  "2026.916.1"\n]\n', "2026.916.1\n"]) {
+      const runCommand = vi.fn(async () => ({ stdout, stderr: "" }));
+      await expect(resolvePublishedVersion("latest", runCommand)).resolves.toBe("2026.916.1");
+    }
+    const multiple = vi.fn(async () => ({ stdout: '["2026.916.0","2026.916.1"]', stderr: "" }));
+    await expect(resolvePublishedVersion("latest", multiple)).rejects.toThrow("unexpected version response");
+  });
+
   it("resolves branch, tag, full SHA, and short SHA refs through GitHub", async () => {
     const sha = "a".repeat(40);
     const runCommand = vi.fn(async (_file: string, _args: string[]) => ({ stdout: JSON.stringify({ sha }), stderr: "" }));
diff --git a/cli/src/commands/install.ts b/cli/src/commands/install.ts
index 3fd4a5b1985..b8083a140f0 100644
--- a/cli/src/commands/install.ts
+++ b/cli/src/commands/install.ts
@@ -111,6 +111,8 @@ function parseResolvedVersion(stdout: string): string {
   try {
     const parsed = JSON.parse(trimmed) as unknown;
     if (typeof parsed === "string") return parsed;
+    // npm 12 wraps single-value `npm view --json` output in an array.
+    if (Array.isArray(parsed) && parsed.length === 1 && typeof parsed[0] === "string") return parsed[0];
   } catch {
     if (EXACT_VERSION_PATTERN.test(trimmed)) return trimmed;
   }