diff --git a/wp-includes/html-api/class-wp-html-tag-processor.php b/wp-includes/html-api/class-wp-html-tag-processor.php
index 7a53fbea1e..fcf418e856 100644
--- a/wp-includes/html-api/class-wp-html-tag-processor.php
+++ b/wp-includes/html-api/class-wp-html-tag-processor.php
@@ -1909,6 +1909,8 @@ class WP_HTML_Tag_Processor {
 			if ( $this->is_closing_tag ) {
 				// No chance of finding a closer.
 				if ( $at + 3 > $doc_length ) {
+					$this->parser_state = self::STATE_INCOMPLETE_INPUT;
+
 					return false;
 				}
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 3cf817eb4a..ebb704edcb 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-58857';
+$wp_version = '6.7-alpha-58858';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.