diff --git a/src/Composer/Console/GithubActionError.php b/src/Composer/Console/GithubActionError.php
index c9e34717c..ef33ae003 100644
--- a/src/Composer/Console/GithubActionError.php
+++ b/src/Composer/Console/GithubActionError.php
@@ -36,9 +36,8 @@ final class GithubActionError
     public function emit($message, $file = null, $line = null)
     {
         if (getenv('GITHUB_ACTIONS') && !getenv('COMPOSER_TESTS_ARE_RUNNING')) {
-            // newlines need to be encoded
-            // see https://github.com/actions/starter-workflows/issues/68#issuecomment-581479448
-            $message = str_replace("\n", '%0A', $message);
+            $message = $this->escapeData($message);
+            $file = $this->escapeProperty($file);
 
             if ($file && $line) {
                 $this->io->write("::error file=". $file .",line=". $line ."::". $message);
@@ -49,4 +48,32 @@ final class GithubActionError
             }
         }
     }
+    
+    /**
+     * @param string $data
+     * @return string
+     */
+    private function escapeData($data) {
+        // see https://github.com/actions/toolkit/blob/4f7fb6513a355689f69f0849edeb369a4dc81729/packages/core/src/command.ts#L80-L85
+        $data = str_replace("%", '%25', $data);
+        $data = str_replace("\r", '%0D', $data);
+        $data = str_replace("\n", '%0A', $data);
+
+        return $data;
+    }
+    
+    /**
+     * @param string $property
+     * @return string
+     */
+    private function escapeProperty($property) {
+        // see https://github.com/actions/toolkit/blob/4f7fb6513a355689f69f0849edeb369a4dc81729/packages/core/src/command.ts#L87-L94
+        $property = str_replace("%", '%25', $property);
+        $property = str_replace("\r", '%0D', $property);
+        $property = str_replace("\n", '%0A', $property);
+        $property = str_replace(":", '%3A', $property);
+        $property = str_replace(",", '%2C', $property);
+
+        return $property;
+    }
 }