diff --git a/NEWS b/NEWS
index fcddfd00061..e5a6e3767fc 100644
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,9 @@ PHP                                                                        NEWS
 - Curl:
   . Fixed bug GH-14307 (Test curl_basic_024 fails with curl 8.8.0). (nielsdos)
 
+- DOM:
+  . Fixed bug GH-14343 (Memory leak in xml and dom). (nielsdos)
+
 - Opcache:
   . Fixed bug GH-14267 (opcache.jit=off does not allow enabling JIT at runtime).
     (ilutov)
diff --git a/ext/dom/document.c b/ext/dom/document.c
index 831f01b87b2..1b0bfda7f6e 100644
--- a/ext/dom/document.c
+++ b/ext/dom/document.c
@@ -813,8 +813,13 @@ PHP_METHOD(DOMDocument, importNode)
 			if (nsptr == NULL || nsptr->prefix == NULL) {
 				int errorcode;
 				nsptr = dom_get_ns(root, (char *) nodep->ns->href, &errorcode, (char *) nodep->ns->prefix);
+
+				/* If there is no root, the namespace cannot be attached to it, so we have to attach it to the old list. */
+				if (nsptr != NULL && root == NULL) {
+					dom_set_old_ns(nodep->doc, nsptr);
+				}
 			}
-			xmlSetNs(retnodep, nsptr);
+			retnodep->ns = nsptr;
 		}
 	}
 
diff --git a/ext/dom/tests/gh14343.phpt b/ext/dom/tests/gh14343.phpt
new file mode 100644
index 00000000000..7cece29f4cd
--- /dev/null
+++ b/ext/dom/tests/gh14343.phpt
@@ -0,0 +1,15 @@
+--TEST--
+GH-14343 (Memory leak in xml and dom)
+--EXTENSIONS--
+dom
+--FILE--
+<?php
+$aDOM = new DOMDocument();
+$fromdom = new DOMDocument();
+$fromdom->loadXML('<data xmlns:ai="http://test.org" ai:attr="namespaced" />');
+$attr= $fromdom->firstChild->attributes->item(0);
+$att = $aDOM->importNode($attr);
+echo $aDOM->saveXML($att);
+?>
+--EXPECT--
+ ai:attr="namespaced"
diff --git a/ext/soap/php_http.c b/ext/soap/php_http.c
index f60f8b21caa..03db4ac4370 100644
--- a/ext/soap/php_http.c
+++ b/ext/soap/php_http.c
@@ -1256,14 +1256,16 @@ try_again:
 		zval retval;
 		zval params[1];
 
+		/* Warning: the zlib function names are chosen in an unfortunate manner.
+		 * Check zlib.c to see how a function corresponds with a particular format. */
 		if ((strcmp(content_encoding,"gzip") == 0 ||
 		     strcmp(content_encoding,"x-gzip") == 0) &&
-		     zend_hash_str_exists(EG(function_table), "gzuncompress", sizeof("gzuncompress")-1)) {
-			ZVAL_STRING(&func, "gzuncompress");
+		     zend_hash_str_exists(EG(function_table), "gzdecode", sizeof("gzdecode")-1)) {
+			ZVAL_STRING(&func, "gzdecode");
 			ZVAL_STR_COPY(&params[0], http_body);
 		} else if (strcmp(content_encoding,"deflate") == 0 &&
-		           zend_hash_str_exists(EG(function_table), "gzinflate", sizeof("gzinflate")-1)) {
-			ZVAL_STRING(&func, "gzinflate");
+		           zend_hash_str_exists(EG(function_table), "gzuncompress", sizeof("gzuncompress")-1)) {
+			ZVAL_STRING(&func, "gzuncompress");
 			ZVAL_STR_COPY(&params[0], http_body);
 		} else {
 			efree(content_encoding);
diff --git a/ext/soap/tests/bugs/bug47925.phpt b/ext/soap/tests/bugs/bug47925.phpt
index ce14c7f4676..ab7881d4abe 100644
--- a/ext/soap/tests/bugs/bug47925.phpt
+++ b/ext/soap/tests/bugs/bug47925.phpt
@@ -32,8 +32,8 @@ function test($compressed_response, $compression_name) {
     http_server_kill($pid);
 }
 
-test(gzcompress($plain_response), "gzip");
-test(gzdeflate($plain_response), "deflate");
+test(gzencode($plain_response), "gzip");
+test(gzcompress($plain_response), "deflate");
 ?>
 --EXPECT--
 int(7)