diff --git a/NEWS b/NEWS
index 5276069926e5..571d8d82e012 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,10 @@ PHP                                                                        NEWS
   . Fixed bug GH-23242 (PHP development server does not support Expect
     100-continue flow control). (Sjoerd Langkemper)
 
+- Intl:
+  . Fixed a leak in Locale::getKeywords() when a keyword value cannot be
+    read. (iliaal)
+
 
 27 Aug 2026, PHP 8.6.0beta2
 
diff --git a/ext/intl/locale/locale_methods.cpp b/ext/intl/locale/locale_methods.cpp
index 8cc7e5a800b5..911abfdc5c11 100644
--- a/ext/intl/locale/locale_methods.cpp
+++ b/ext/intl/locale/locale_methods.cpp
@@ -891,6 +891,7 @@ PHP_INTL_FUNCTION_WITH_ERROR_RESET(locale_get_keywords)
 					zend_string_efree( kw_value_str );
 				}
 				zend_array_destroy(Z_ARR_P(return_value));
+				uenum_close( e );
 				RETURN_FALSE;
 			}
 
diff --git a/ext/intl/tests/locale_get_keywords_failure.phpt b/ext/intl/tests/locale_get_keywords_failure.phpt
new file mode 100644
index 000000000000..823da63ca541
--- /dev/null
+++ b/ext/intl/tests/locale_get_keywords_failure.phpt
@@ -0,0 +1,18 @@
+--TEST--
+Locale::getKeywords() closes the keyword enumeration on failure
+--EXTENSIONS--
+intl
+--SKIPIF--
+<?php
+if (version_compare(INTL_ICU_VERSION, '59.1', '<')) {
+    die('skip for ICU >= 59.1');
+}
+?>
+--FILE--
+<?php
+var_dump(Locale::getKeywords('en@foo=bar!'));
+var_dump(intl_get_error_code() === U_ILLEGAL_ARGUMENT_ERROR);
+?>
+--EXPECT--
+bool(false)
+bool(true)