diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
index b620f67bc943..bb29c884433e 100644
--- a/COPYRIGHT.txt
+++ b/COPYRIGHT.txt
@@ -350,7 +350,7 @@ License: CC0-1.0
 
 Files: ./thirdparty/miniupnpc/
 Comment: MiniUPnP Project
-Copyright: 2005-2023, Thomas Bernard
+Copyright: 2005-2024, Thomas Bernard
 License: BSD-3-clause
 
 Files: ./thirdparty/minizip/
diff --git a/thirdparty/README.md b/thirdparty/README.md
index 2245fd225080..107c2b2589b7 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -584,14 +584,14 @@ to solve some MSVC warnings. See the patches in the `patches` directory.
 ## miniupnpc
 
 - Upstream: https://github.com/miniupnp/miniupnp
-- Version: 2.2.5 (58837ef586278d18cbebee50be758835ed4be79a, 2023)
+- Version: 2.2.6 (faad29d7300f1bfa9dc7795031993c04c5191f59, 2024)
 - License: BSD-3-Clause
 
 Files extracted from upstream source:
 
 - Copy `miniupnpc/src` and `miniupnpc/include` to `thirdparty/miniupnpc`
 - Remove the following test or sample files:
-  `listdevices.c minihttptestserver.c miniupnpcmodule.c upnpc.c upnperrors.* test*`
+  `listdevices.c,minihttptestserver.c,miniupnpcmodule.c,upnpc.c,upnperrors.*,test*`
 - `LICENSE`
 
 The only modified file is `src/miniupnpcstrings.h`, which was created for Godot
diff --git a/thirdparty/miniupnpc/LICENSE b/thirdparty/miniupnpc/LICENSE
index 6eff8d2683ea..2755844d49ce 100644
--- a/thirdparty/miniupnpc/LICENSE
+++ b/thirdparty/miniupnpc/LICENSE
@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2005-2023, Thomas BERNARD
+Copyright (c) 2005-2024, Thomas BERNARD
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/thirdparty/miniupnpc/include/miniupnpc.h b/thirdparty/miniupnpc/include/miniupnpc.h
index 721819583fc5..808c6ad975f7 100644
--- a/thirdparty/miniupnpc/include/miniupnpc.h
+++ b/thirdparty/miniupnpc/include/miniupnpc.h
@@ -1,4 +1,4 @@
-/* $Id: miniupnpc.h,v 1.62 2023/06/11 23:25:46 nanard Exp $ */
+/* $Id: miniupnpc.h,v 1.63 2024/01/04 00:45:17 nanard Exp $ */
 /* vim: tabstop=4 shiftwidth=4 noexpandtab
  * Project: miniupnp
  * http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
@@ -20,7 +20,7 @@
 #define UPNPDISCOVER_MEMORY_ERROR (-102)
 
 /* versions : */
-#define MINIUPNPC_VERSION	"2.2.5"
+#define MINIUPNPC_VERSION	"2.2.6"
 #define MINIUPNPC_API_VERSION	17
 
 /* Source port:
diff --git a/thirdparty/miniupnpc/src/minisoap.c b/thirdparty/miniupnpc/src/minisoap.c
index 78606672d543..903ac5ffc615 100644
--- a/thirdparty/miniupnpc/src/minisoap.c
+++ b/thirdparty/miniupnpc/src/minisoap.c
@@ -1,8 +1,8 @@
-/* $Id: minisoap.c,v 1.30 2020/11/09 19:27:42 nanard Exp $ */
+/* $Id: minisoap.c,v 1.32 2023/07/05 22:43:50 nanard Exp $ */
 /* vim: tabstop=4 shiftwidth=4 noexpandtab
  * Project : miniupnp
  * Author : Thomas Bernard
- * Copyright (c) 2005-2020 Thomas Bernard
+ * Copyright (c) 2005-2023 Thomas Bernard
  * This software is subject to the conditions detailed in the
  * LICENCE file provided in this distribution.
  *
@@ -90,9 +90,13 @@ int soapPostSubmit(SOCKET fd,
 	headerssize = snprintf(headerbuf, sizeof(headerbuf),
                        "POST %s HTTP/%s\r\n"
 	                   "Host: %s%s\r\n"
-					   "User-Agent: " OS_STRING ", " UPNP_VERSION_STRING ", MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
+					   "User-Agent: " OS_STRING " " UPNP_VERSION_STRING " MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
 	                   "Content-Length: %d\r\n"
+#if (UPNP_VERSION_MAJOR == 1) && (UPNP_VERSION_MINOR == 0)
 					   "Content-Type: text/xml\r\n"
+#else
+					   "Content-Type: text/xml; charset=\"utf-8\"\r\n"
+#endif
 					   "SOAPAction: \"%s\"\r\n"
 					   "Connection: Close\r\n"
 					   "Cache-Control: no-cache\r\n"	/* ??? */
diff --git a/thirdparty/miniupnpc/src/minissdpc.c b/thirdparty/miniupnpc/src/minissdpc.c
index edebb1600a03..98c5b37463ff 100644
--- a/thirdparty/miniupnpc/src/minissdpc.c
+++ b/thirdparty/miniupnpc/src/minissdpc.c
@@ -338,7 +338,7 @@ receiveDevicesFromMiniSSDPD(int s, int * error)
 #ifdef DEBUG
 		printf("   usnsize=%u\n", usnsize);
 #endif /* DEBUG */
-		tmp = (struct UPNPDev *)malloc(sizeof(struct UPNPDev)+urlsize+stsize+usnsize);
+		tmp = (struct UPNPDev *)malloc(sizeof(struct UPNPDev)+urlsize+stsize+usnsize+3);
 		if(tmp == NULL) {
 			if (error)
 				*error = MINISSDPC_MEMORY_ERROR;
diff --git a/thirdparty/miniupnpc/src/miniupnpcstrings.h b/thirdparty/miniupnpc/src/miniupnpcstrings.h
index 5ad694754fdb..bd4dd317c1e0 100644
--- a/thirdparty/miniupnpc/src/miniupnpcstrings.h
+++ b/thirdparty/miniupnpc/src/miniupnpcstrings.h
@@ -2,7 +2,7 @@
 #define MINIUPNPCSTRINGS_H_INCLUDED
 
 #define OS_STRING "Godot Engine/1.0"
-#define MINIUPNPC_VERSION_STRING "2.2.5"
+#define MINIUPNPC_VERSION_STRING "2.2.6"
 
 #if 0
 /* according to "UPnP Device Architecture 1.0" */
diff --git a/thirdparty/miniupnpc/src/miniwget.c b/thirdparty/miniupnpc/src/miniwget.c
index d5b797063203..e76a5e516b47 100644
--- a/thirdparty/miniupnpc/src/miniwget.c
+++ b/thirdparty/miniupnpc/src/miniwget.c
@@ -1,8 +1,8 @@
-/* $Id: miniwget.c,v 1.82 2020/05/29 21:14:22 nanard Exp $ */
+/* $Id: miniwget.c,v 1.85 2023/06/15 21:47:50 nanard Exp $ */
 /* Project : miniupnp
  * Website : http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
  * Author : Thomas Bernard
- * Copyright (c) 2005-2020 Thomas Bernard
+ * Copyright (c) 2005-2023 Thomas Bernard
  * This software is subject to the conditions detailed in the
  * LICENCE file provided in this distribution. */
 
@@ -444,7 +444,7 @@ miniwget3(const char * host,
                  "GET %s HTTP/%s\r\n"
 			     "Host: %s:%d\r\n"
 				 "Connection: Close\r\n"
-				 "User-Agent: " OS_STRING ", " UPNP_VERSION_STRING ", MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
+				 "User-Agent: " OS_STRING " " UPNP_VERSION_STRING " MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
 
 				 "\r\n",
 			   path, httpversion, host, port);