diff --git a/NEWS b/NEWS
index f883202f317..bde8e2ba505 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,10 @@ PHP                                                                        NEWS
   . Fix crash when calling childNodes next() when iterator is exhausted.
     (nielsdos)
 
+- XML:
+  . Fixed bug GH-14124 (Segmentation fault with XML extension under certain
+    memory limit). (nielsdos)
+
 09 May 2024, PHP 8.3.7
 
 - Core:
diff --git a/ext/xml/xml.c b/ext/xml/xml.c
index a7c6757d7a2..bc083ab7f14 100644
--- a/ext/xml/xml.c
+++ b/ext/xml/xml.c
@@ -1286,6 +1286,7 @@ PHP_FUNCTION(xml_parse_into_struct)
 	parser->level = 0;
 	xml_parser_free_ltags(parser);
 	parser->ltags = safe_emalloc(XML_MAXLEVEL, sizeof(char *), 0);
+	memset(parser->ltags, 0, XML_MAXLEVEL * sizeof(char *));
 
 	XML_SetElementHandler(parser->parser, _xml_startElementHandler, _xml_endElementHandler);
 	XML_SetCharacterDataHandler(parser->parser, _xml_characterDataHandler);