diff --git a/changelog_unreleased/cli/18452.md b/changelog_unreleased/cli/18452.md
new file mode 100644
index 000000000..c73c6aa5c
--- /dev/null
+++ b/changelog_unreleased/cli/18452.md
@@ -0,0 +1,15 @@
+#### Fix crashes on formatting directory names that have special characters (#18452 by @fisker)
+
+<!-- prettier-ignore -->
+```sh
+prettier . --check
+
+# Prettier stable
+[error] Invalid configuration for file "<CWD>\test\username[repo-name]\.editorconfig":
+[error] Invalid regular expression: /^(?=.)username[repo-name]$/: Range out of order in character class
+
+# Prettier main
+Checking formatting...
+[warn] test/username[repo-name]/test.js
+[warn] Code style issues found in the above file. Run Prettier with --write to fix.
+```
diff --git a/package.json b/package.json
index 6adfb1267..f030bf952 100644
--- a/package.json
+++ b/package.json
@@ -65,7 +65,7 @@
     "dashify": "2.0.0",
     "deno-path-from-file-url": "0.0.4",
     "diff": "8.0.2",
-    "editorconfig": "0.15.3",
+    "editorconfig-without-wasm": "0.0.4",
     "emoji-regex": "10.6.0",
     "escape-string-regexp": "5.0.0",
     "espree": "11.0.0",
diff --git a/scripts/build/esbuild-plugins/replace-module.js b/scripts/build/esbuild-plugins/replace-module.js
index 69b6326a8..c315fc917 100644
--- a/scripts/build/esbuild-plugins/replace-module.js
+++ b/scripts/build/esbuild-plugins/replace-module.js
@@ -159,7 +159,7 @@ function setupOnLoadListener(build, { concepts, replacements, processors }) {
 
     let text = original;
     for (const process of processFunctions) {
-      text = process(text, file);
+      text = await process(text, file);
     }
 
     // For files not JavaScript, we need add correct `loader` to the result,
diff --git a/scripts/build/packages/prettier.js b/scripts/build/packages/prettier.js
index 14d65dd2f..c512ace9b 100644
--- a/scripts/build/packages/prettier.js
+++ b/scripts/build/packages/prettier.js
@@ -42,17 +42,14 @@ const mainModule = {
     createNodejsFileConfig({
       input: "src/index.js",
       replaceModule: [
-        // `editorconfig` use a older version of `semver` and only uses `semver.gte`
+        // We don't need semver since we don't use `options.version`
         {
-          module: require.resolve("editorconfig"),
-          find: 'var semver = __importStar(require("semver"));',
-          replacement: outdent`
-            var semver = {
-              gte: require(${JSON.stringify(
-                require.resolve("semver/functions/gte"),
-              )})
-            };
-          `,
+          module: require.resolve("editorconfig-without-wasm"),
+          process(text) {
+            text = text.replace("import * as semver from 'semver';", "");
+            text = text.replace("semver.gte(version, '0.10.0')", "true");
+            return text;
+          },
         },
         {
           module: require.resolve("n-readlines"),
diff --git a/src/config/editorconfig/index.js b/src/config/editorconfig/index.js
index 6b3537867..2a2e1e968 100644
--- a/src/config/editorconfig/index.js
+++ b/src/config/editorconfig/index.js
@@ -1,5 +1,5 @@
 import path from "node:path";
-import editorconfig from "editorconfig";
+import { parse as parseEditorconfig } from "editorconfig-without-wasm";
 import {
   clearFindProjectRootCache,
   findProjectRoot,
@@ -23,7 +23,7 @@ function clearEditorconfigCache() {
 async function loadEditorconfigInternal(file, { shouldCache }) {
   const directory = path.dirname(file);
   const root = await findProjectRoot(directory, { shouldCache });
-  const editorConfig = await editorconfig.parse(file, { root });
+  const editorConfig = await parseEditorconfig(file, { root });
   const config = editorConfigToPrettier(editorConfig);
   return config;
 }
diff --git a/tests/integration/__tests__/__snapshots__/special-characters-in-path.js.snap b/tests/integration/__tests__/__snapshots__/special-characters-in-path.js.snap
index 013873d0c..f5c872b21 100644
--- a/tests/integration/__tests__/__snapshots__/special-characters-in-path.js.snap
+++ b/tests/integration/__tests__/__snapshots__/special-characters-in-path.js.snap
@@ -10,10 +10,11 @@ exports[`ignores file name contains emoji  1`] = `
 
 exports[`square-brackets-and-dash  1`] = `
 {
-  "status": 2,
-  "stderr": "[error] Invalid configuration for file "<cli>/special-characters-in-path/square-brackets-and-dash/test/username[repo-name]/.editorconfig":
-[error] Invalid regular expression: /^(?=.)username[repo-name]$/: Range out of order in character class",
-  "stdout": "",
+  "status": 0,
+  "stderr": "",
+  "stdout": "function a() {
+    const foo = "bar";
+}",
   "write": [],
 }
 `;
diff --git a/tests/integration/__tests__/special-characters-in-path.js b/tests/integration/__tests__/special-characters-in-path.js
index 9e3710a8d..21f465576 100644
--- a/tests/integration/__tests__/special-characters-in-path.js
+++ b/tests/integration/__tests__/special-characters-in-path.js
@@ -22,7 +22,6 @@ describe("stdin", () => {
   });
 });
 
-// This is a failed test for #15188
 describe("square-brackets-and-dash", () => {
   runCli("cli/special-characters-in-path/square-brackets-and-dash", [
     "test",
diff --git a/tests/integration/cli/special-characters-in-path/square-brackets-and-dash/readme.md b/tests/integration/cli/special-characters-in-path/square-brackets-and-dash/readme.md
index 5071803aa..c17071109 100644
--- a/tests/integration/cli/special-characters-in-path/square-brackets-and-dash/readme.md
+++ b/tests/integration/cli/special-characters-in-path/square-brackets-and-dash/readme.md
@@ -1,11 +1,19 @@
-This is a test fixture for an existing issue.
+This is a test fixture for the following issue.
 
 Issue link:
 
 https://github.com/prettier/prettier/issues/15188
 
-Can debug with this command
+Can debug with
+
+Development version
 
 ```sh
-node ../../../../../bin/prettier test
+node ../../../../../bin/prettier test --check
+```
+
+Stable version
+
+```sh
+node ../../../../../node_modules/prettier/bin/prettier.cjs test test --check
 ```
diff --git a/yarn.lock b/yarn.lock
index 0d0b3ab92..b0d65cfbd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3532,20 +3532,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"commander@npm:^14.0.2":
+"commander@npm:^14.0.0, commander@npm:^14.0.2":
   version: 14.0.2
   resolution: "commander@npm:14.0.2"
   checksum: 10/2d202db5e5f9bb770112a3c1579b893d17ac6f6d932183077308bdd96d0f87f0bbe6a68b5b9ed2cf3b2514be6bb7de637480703c0e2db9741ee1b383237deb26
   languageName: node
   linkType: hard
 
-"commander@npm:^2.19.0":
-  version: 2.20.3
-  resolution: "commander@npm:2.20.3"
-  checksum: 10/90c5b6898610cd075984c58c4f88418a4fb44af08c1b1415e9854c03171bec31b336b7f3e4cefe33de994b3f12b03c5e2d638da4316df83593b9e82554e7e95b
-  languageName: node
-  linkType: hard
-
 "comment-json@npm:^4.4.1":
   version: 4.4.1
   resolution: "comment-json@npm:4.4.1"
@@ -3912,17 +3905,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"editorconfig@npm:0.15.3":
-  version: 0.15.3
-  resolution: "editorconfig@npm:0.15.3"
+"editorconfig-without-wasm@npm:0.0.4":
+  version: 0.0.4
+  resolution: "editorconfig-without-wasm@npm:0.0.4"
   dependencies:
-    commander: "npm:^2.19.0"
-    lru-cache: "npm:^4.1.5"
-    semver: "npm:^5.6.0"
-    sigmund: "npm:^1.0.1"
+    commander: "npm:^14.0.0"
+    ini-simple-parser: "npm:^1.0.1"
+    minimatch: "npm:10.0.1"
+    semver: "npm:^7.7.2"
   bin:
     editorconfig: bin/editorconfig
-  checksum: 10/d82b32cc4e8f5a873b868aedd07056d62afb00c1453a3214bcef7799ff045c4c13146731c7648e5b8397b9efc71c1896733ad97a211d05cc8933364273321295
+  checksum: 10/ee2dbe40e330ff8cef6a8136dd2dd831e4f1524e2313f7e0856194a38a6bde1b576f7fe0ce4d644281eef154b5cfbe1e63db0b6e7786b273935b43f19f252e2f
   languageName: node
   linkType: hard
 
@@ -6564,16 +6557,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"lru-cache@npm:^4.1.5":
-  version: 4.1.5
-  resolution: "lru-cache@npm:4.1.5"
-  dependencies:
-    pseudomap: "npm:^1.0.2"
-    yallist: "npm:^2.1.2"
-  checksum: 10/9ec7d73f11a32cba0e80b7a58fdf29970814c0c795acaee1a6451ddfd609bae6ef9df0837f5bbeabb571ecd49c1e2d79e10e9b4ed422cfba17a0cb6145b018a9
-  languageName: node
-  linkType: hard
-
 "lru-cache@npm:^5.1.1":
   version: 5.1.1
   resolution: "lru-cache@npm:5.1.1"
@@ -6695,6 +6678,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"minimatch@npm:10.0.1":
+  version: 10.0.1
+  resolution: "minimatch@npm:10.0.1"
+  dependencies:
+    brace-expansion: "npm:^2.0.1"
+  checksum: 10/082e7ccbc090d5f8c4e4e029255d5a1d1e3af37bda837da2b8b0085b1503a1210c91ac90d9ebfe741d8a5f286ece820a1abb4f61dc1f82ce602a055d461d93f3
+  languageName: node
+  linkType: hard
+
 "minimatch@npm:^10.1.1":
   version: 10.1.1
   resolution: "minimatch@npm:10.1.1"
@@ -7555,7 +7547,7 @@ __metadata:
     dashify: "npm:2.0.0"
     deno-path-from-file-url: "npm:0.0.4"
     diff: "npm:8.0.2"
-    editorconfig: "npm:0.15.3"
+    editorconfig-without-wasm: "npm:0.0.4"
     emoji-regex: "npm:10.6.0"
     enquirer: "npm:2.4.1"
     esbuild: "npm:0.27.0"
@@ -7722,13 +7714,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"pseudomap@npm:^1.0.2":
-  version: 1.0.2
-  resolution: "pseudomap@npm:1.0.2"
-  checksum: 10/856c0aae0ff2ad60881168334448e898ad7a0e45fe7386d114b150084254c01e200c957cf378378025df4e052c7890c5bd933939b0e0d2ecfcc1dc2f0b2991f5
-  languageName: node
-  linkType: hard
-
 "punycode@npm:^2.1.0":
   version: 2.3.1
   resolution: "punycode@npm:2.3.1"
@@ -8003,15 +7988,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"semver@npm:^5.6.0":
-  version: 5.7.2
-  resolution: "semver@npm:5.7.2"
-  bin:
-    semver: bin/semver
-  checksum: 10/fca14418a174d4b4ef1fecb32c5941e3412d52a4d3d85165924ce3a47fbc7073372c26faf7484ceb4bbc2bde25880c6b97e492473dc7e9708fdfb1c6a02d546e
-  languageName: node
-  linkType: hard
-
 "semver@npm:^6.3.1":
   version: 6.3.1
   resolution: "semver@npm:6.3.1"
@@ -8051,13 +8027,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"sigmund@npm:^1.0.1":
-  version: 1.0.1
-  resolution: "sigmund@npm:1.0.1"
-  checksum: 10/5c199a9f7b24483bec8289dcaf72a0280382fc6ece47a19ddb3c8599b2f9126d4e113710a69fba2c70e22a7f2eadcd8adefb142700164ef19699f4ea1c02cbaa
-  languageName: node
-  linkType: hard
-
 "signal-exit@npm:^3.0.3":
   version: 3.0.7
   resolution: "signal-exit@npm:3.0.7"
@@ -9259,13 +9228,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yallist@npm:^2.1.2":
-  version: 2.1.2
-  resolution: "yallist@npm:2.1.2"
-  checksum: 10/75fc7bee4821f52d1c6e6021b91b3e079276f1a9ce0ad58da3c76b79a7e47d6f276d35e206a96ac16c1cf48daee38a8bb3af0b1522a3d11c8ffe18f898828832
-  languageName: node
-  linkType: hard
-
 "yallist@npm:^3.0.2":
   version: 3.1.1
   resolution: "yallist@npm:3.1.1"