diff --git a/lib/internal/fs/glob.js b/lib/internal/fs/glob.js
index a0e7837db7c342..c608016833f99e 100644
--- a/lib/internal/fs/glob.js
+++ b/lib/internal/fs/glob.js
@@ -936,15 +936,16 @@ function matchGlobPattern(path, pattern, windows = isWindows) {
   validateString(path, 'path');
   validateString(pattern, 'pattern');
 
+  const cacheKey = `${windows ? 'win32' : 'posix'}:${pattern}`;
   let matcher;
-  if (patternFnCache.has(pattern)) {
-    matcher = patternFnCache.get(pattern);
+  if (patternFnCache.has(cacheKey)) {
+    matcher = patternFnCache.get(cacheKey);
   } else {
     matcher = createMatcher(pattern, {
       kEmptyObject,
       platform: windows ? 'win32' : 'posix',
     });
-    patternFnCache.set(pattern, matcher);
+    patternFnCache.set(cacheKey, matcher);
 
     if (patternFnCache.size >= kGlobPatternCacheLimit) {
       patternFnCache.delete(patternFnCache.keys().next().value);
diff --git a/test/parallel/test-path-glob.js b/test/parallel/test-path-glob.js
index 47647e12784e5a..11633f52245ee9 100644
--- a/test/parallel/test-path-glob.js
+++ b/test/parallel/test-path-glob.js
@@ -31,6 +31,9 @@ const globs = {
   ],
 };
 
+// Matchers for the same pattern must not be shared across path platforms.
+assert.strictEqual(path.posix.matchesGlob('platform-cache/file', 'platform-cache/**'), true);
+assert.strictEqual(path.win32.matchesGlob('platform-cache\\file', 'platform-cache/**'), true);
 
 for (const [platform, platformGlobs] of Object.entries(globs)) {
   for (const [pathStr, glob, expected] of platformGlobs) {