Json \u escape sequence was not case insensitive (#1770)

sebastienros · Feb 2, 2024 · ac2b527 · ac2b527
1 parent 294c4b9
commit ac2b527
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/Jint.Tests/Runtime/JsonTests.cs b/Jint.Tests/Runtime/JsonTests.cs
@@ -28,6 +28,10 @@ public void CanParseTabsInProperties()
         [InlineData("{\"a\":\"\\u0000\"}", "\0")]
         [InlineData("{\"a\":\"\\u0001\"}", "\x01")]
         [InlineData("{\"a\":\"\\u0061\"}", "a")]
+        [InlineData("{\"a\":\"\\u003C\"}", "<")]
+        [InlineData("{\"a\":\"\\u003E\"}", ">")]
+        [InlineData("{\"a\":\"\\u003c\"}", "<")]
+        [InlineData("{\"a\":\"\\u003e\"}", ">")]
         public void ShouldParseEscapedCharactersCorrectly(string json, string expectedCharacter)
         {
             var engine = new Engine();

diff --git a/Jint/Native/Json/JsonParser.cs b/Jint/Native/Json/JsonParser.cs
@@ -103,7 +103,7 @@ private char ScanHexEscape()
             {
                 if (_index < _length + 1 && IsHexDigit(_source[_index]))
                 {
-                    char ch = _source[_index++];
+                    char ch = char.ToLower(_source[_index++], CultureInfo.InvariantCulture);
                     code = code * 16 + "0123456789abcdef".IndexOf(ch);
                 }
                 else