new file mode 100644
@@ -0,0 +1,43 @@
+From 86fc914a7acc49246d5fde0ab6ed97eb8a0f15f9 Mon Sep 17 00:00:00 2001
+From: Sebastian Pipping <sebastian@pipping.org>
+Date: Sun, 18 Jan 2026 17:53:37 +0100
+Subject: [PATCH] lib: Make XML_ExternalEntityParserCreate copy unknown
+ encoding handler user data
+
+Patch suggested by Artiphishell Inc.
+
+CVE: CVE-2026-24515
+Upstream-Status: Backport [https://github.com/libexpat/libexpat/commit/86fc914a7acc49246d5fde0ab6ed97eb8a0f15f9]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ lib/xmlparse.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/lib/xmlparse.c b/lib/xmlparse.c
+index 593cd90d..18577ee3 100644
+--- a/lib/xmlparse.c
++++ b/lib/xmlparse.c
+@@ -1289,6 +1289,7 @@ XML_ExternalEntityParserCreate(XML_Parser oldParser, const XML_Char *context,
+ XML_ExternalEntityRefHandler oldExternalEntityRefHandler;
+ XML_SkippedEntityHandler oldSkippedEntityHandler;
+ XML_UnknownEncodingHandler oldUnknownEncodingHandler;
++ void *oldUnknownEncodingHandlerData;
+ XML_ElementDeclHandler oldElementDeclHandler;
+ XML_AttlistDeclHandler oldAttlistDeclHandler;
+ XML_EntityDeclHandler oldEntityDeclHandler;
+@@ -1333,6 +1334,7 @@ XML_ExternalEntityParserCreate(XML_Parser oldParser, const XML_Char *context,
+ oldExternalEntityRefHandler = parser->m_externalEntityRefHandler;
+ oldSkippedEntityHandler = parser->m_skippedEntityHandler;
+ oldUnknownEncodingHandler = parser->m_unknownEncodingHandler;
++ oldUnknownEncodingHandlerData = parser->m_unknownEncodingHandlerData;
+ oldElementDeclHandler = parser->m_elementDeclHandler;
+ oldAttlistDeclHandler = parser->m_attlistDeclHandler;
+ oldEntityDeclHandler = parser->m_entityDeclHandler;
+@@ -1391,6 +1393,7 @@ XML_ExternalEntityParserCreate(XML_Parser oldParser, const XML_Char *context,
+ parser->m_externalEntityRefHandler = oldExternalEntityRefHandler;
+ parser->m_skippedEntityHandler = oldSkippedEntityHandler;
+ parser->m_unknownEncodingHandler = oldUnknownEncodingHandler;
++ parser->m_unknownEncodingHandlerData = oldUnknownEncodingHandlerData;
+ parser->m_elementDeclHandler = oldElementDeclHandler;
+ parser->m_attlistDeclHandler = oldAttlistDeclHandler;
+ parser->m_entityDeclHandler = oldEntityDeclHandler;
@@ -30,6 +30,7 @@ SRC_URI = "https://github.com/libexpat/libexpat/releases/download/R_${VERSION_TA
file://CVE-2024-45492.patch \
file://CVE-2024-50602-01.patch \
file://CVE-2024-50602-02.patch \
+ file://CVE-2026-24515.patch \
"
UPSTREAM_CHECK_URI = "https://github.com/libexpat/libexpat/releases/"