diff --git a/lib/internal/source_map/source_map_cache.js b/lib/internal/source_map/source_map_cache.js
index a4a95ad0ae49c3..95b09090c4739c 100644
--- a/lib/internal/source_map/source_map_cache.js
+++ b/lib/internal/source_map/source_map_cache.js
@@ -247,7 +247,10 @@ function dataFromUrl(sourceURL, sourceMappingURL) {
     }
   }
 
-  const mapURL = new URL(sourceMappingURL, sourceURL).href;
+  const mapURL = URLParse(sourceMappingURL, sourceURL);
+  if (mapURL === null) {
+    return null;
+  }
   return sourceMapFromFile(mapURL);
 }
 
@@ -276,7 +279,7 @@ function lineLengths(content) {
 
 /**
  * Read source map from file.
- * @param {string} mapURL - file url of the source map
+ * @param {URL} mapURL - file url of the source map
  * @returns {object} deserialized source map JSON object
  */
 function sourceMapFromFile(mapURL) {
diff --git a/test/parallel/test-source-map-invalid-url.js b/test/parallel/test-source-map-invalid-url.js
new file mode 100644
index 00000000000000..a968040b4f1e3d
--- /dev/null
+++ b/test/parallel/test-source-map-invalid-url.js
@@ -0,0 +1,56 @@
+// Flags: --enable-source-maps
+'use strict';
+
+const common = require('../common');
+const assert = require('node:assert');
+const childProcess = require('node:child_process');
+
+// TODO(legendecas): c8 will complain if non-file-scheme is used in source maps.
+// https://github.com/bcoe/c8/blob/ee2f1cfc5584d41bb2d51b788d0953dab0c798f8/lib/report.js#L517
+if (process.env.NODE_V8_COVERAGE) {
+  console.log('Spawning with coverage disabled.');
+  const { status } = childProcess.spawnSync(
+    process.execPath,
+    [__filename],
+    {
+      stdio: 'inherit',
+      env: {
+        ...process.env,
+        NODE_V8_COVERAGE: '',
+      },
+    },
+  );
+  assert.strictEqual(status, 0);
+  return;
+}
+
+const sources = [
+  `
+  //# sourceMappingURL=unknown-protocol://invalid/url
+  //# sourceURL=unknown-protocol://invalid/url
+  `,
+  `
+  //# sourceMappingURL=file://invalid:/file/url
+  //# sourceURL=file://invalid:/file/url
+  `,
+  `
+  //# sourceMappingURL=invalid-url
+  //# sourceURL=invalid-url
+  `,
+];
+
+sources.forEach(test);
+
+function test(source) {
+  // Eval should tolerate invalid source map url
+  eval(source);
+
+  const base64 = Buffer.from(source).toString('base64url');
+
+  // Dynamic import should tolerate invalid source map url
+  import(`data:text/javascript;base64,${base64}`)
+    .then(common.mustCall());
+}
+
+// eslint-disable-next-line @stylistic/js/spaced-comment
+//# sourceMappingURL=invalid-url