diff --git a/scripts/publint-all.ts b/scripts/publint-all.ts
index 722cf4d2ac..0911316f18 100644
--- a/scripts/publint-all.ts
+++ b/scripts/publint-all.ts
@@ -6,17 +6,18 @@ import { promisify } from 'node:util'
 
 const execFileAsync = promisify(execFile)
 const CONCURRENCY_ENV = 'DSH_PUBLINT_CONCURRENCY'
-const isWindows = process.platform === 'win32'
 
 // Discover harness packages at packages/<group>/<pkg>; group containers,
 // examples, and private vendored sources are not package targets.
 const root = resolve(import.meta.dirname, '..')
 const packagesRoot = resolve(root, 'packages')
 
-// On Windows recent Node (CVE-2024-27980) refuses to launch .cmd/.bat bin
-// shims without shell:true. Use the absolute path to the .cmd shim so the
-// subprocess (not a pnpm child — PATH lacks node_modules/.bin) still finds it.
-const publintBin = resolve(root, `node_modules/.bin/publint${isWindows ? '.cmd' : ''}`)
+// Run publint's JS CLI through the current node, not the .bin shim: the
+// extensionless shim isn't spawnable on Windows (CVE-2024-27980) and the .cmd
+// variant needs shell:true, which space-joins args UNESCAPED (DEP0190) and
+// breaks when the repo path contains spaces. The JS entry is identical on every
+// platform (`bin` is `./src/cli.js` per publint's package.json).
+const publintCli = resolve(root, 'node_modules/publint/src/cli.js')
 
 type PublintResult =
   | { path: string; status: 'passed'; stdout: string; stderr: string }
@@ -56,11 +57,10 @@ function outputText(value: unknown): string {
 
 async function runPublint(path: string): Promise<PublintResult> {
   try {
-    const { stdout, stderr } = await execFileAsync(publintBin, [path], {
+    const { stdout, stderr } = await execFileAsync(process.execPath, [publintCli, path], {
       cwd: root,
       encoding: 'utf8',
       maxBuffer: 10 * 1024 * 1024,
-      shell: isWindows,
     })
     return { path, status: 'passed', stdout, stderr }
   } catch (error: unknown) {
diff --git a/scripts/verify-node-next-types.ts b/scripts/verify-node-next-types.ts
index 7ee046c7bb..3b577a39bc 100644
--- a/scripts/verify-node-next-types.ts
+++ b/scripts/verify-node-next-types.ts
@@ -10,7 +10,6 @@ import { execFileSync } from 'node:child_process'
 import { existsSync, globSync, mkdirSync, mkdtempSync, readFileSync, rmSync, symlinkSync, writeFileSync } from 'node:fs'
 import { dirname, resolve } from 'node:path'
 
-const isWindows = process.platform === 'win32'
 const root = resolve(import.meta.dirname, '..')
 
 interface ExportTarget {
@@ -144,13 +143,13 @@ try {
     .join('\n')
   writeFileSync(resolve(tmp, 'index.ts'), `${imports}\n`)
 
-  // On Windows the bin shim is a .cmd file; recent Node (CVE-2024-27980)
-  // refuses to launch .cmd/.bat via execFileSync without shell:true.
-  const tscBin = isWindows ? resolve(root, 'node_modules/.bin/tsc.cmd') : resolve(root, 'node_modules/.bin/tsc')
-  execFileSync(tscBin, ['-p', resolve(tmp, 'tsconfig.json'), '--pretty', 'false'], {
+  // tsc's JS entry via the current node, not the .bin shim: the extensionless
+  // shim isn't spawnable on Windows (CVE-2024-27980) and the .cmd variant needs
+  // shell:true, which space-joins args UNESCAPED (DEP0190) — a hazard for the
+  // temp tsconfig path. The JS entry behaves identically on every platform.
+  execFileSync(process.execPath, ['node_modules/typescript/bin/tsc', '-p', resolve(tmp, 'tsconfig.json'), '--pretty', 'false'], {
     cwd: root,
     stdio: 'pipe',
-    shell: isWindows,
   })
   console.log(`verify-node-next-types: ${packages.length} workspace package declaration surface(s) compile under NodeNext.`)
 } catch (error: unknown) {