diff --git a/libxslt-1.1.39-CVE-2024-55549.patch b/libxslt-1.1.39-CVE-2024-55549.patch
new file mode 100644
index 0000000000000000000000000000000000000000..a374105d3d9049ae43adaf2bf3f2404fb0fdb4ee
--- /dev/null
+++ b/libxslt-1.1.39-CVE-2024-55549.patch
@@ -0,0 +1,45 @@
+From 7f24858ae0f26e610a5a9a6f2a216fa6469c52d1 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Thu, 5 Dec 2024 12:43:19 +0100
+Subject: [PATCH] [CVE-2024-55549] Fix UAF related to excluded namespaces
+
+Definitions of excluded namespaces could be deleted in
+xsltParseTemplateContent. Store excluded namespace URIs in the
+stylesheet's dictionary instead of referencing the namespace definition.
+
+Thanks to Ivan Fratric for the report!
+
+Fixes #127.
+---
+ libxslt/xslt.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/libxslt/xslt.c b/libxslt/xslt.c
+index 39a700b0..9a081cd1 100644
+--- a/libxslt/xslt.c
++++ b/libxslt/xslt.c
+@@ -147,10 +147,20 @@ xsltParseContentError(xsltStylesheetPtr style,
+  * in case of error
+  */
+ static int
+-exclPrefixPush(xsltStylesheetPtr style, xmlChar * value)
++exclPrefixPush(xsltStylesheetPtr style, xmlChar * orig)
+ {
++    xmlChar *value;
+     int i;
+ 
++    /*
++     * orig can come from a namespace definition on a node which
++     * could be deleted later, for example in xsltParseTemplateContent.
++     * Store the string in stylesheet's dict to avoid use after free.
++     */
++    value = (xmlChar *) xmlDictLookup(style->dict, orig, -1);
++    if (value == NULL)
++        return(-1);
++
+     /* do not push duplicates */
+     for (i = 0;i < style->exclPrefixNr;i++) {
+         if (xmlStrEqual(style->exclPrefixTab[i], value))
+-- 
+2.49.0
+
diff --git a/libxslt.spec b/libxslt.spec
index e841a71c1763aed10dbba8535b83c665460482d7..b8f6f752d543db20671fa898d5cca23c6a1351fc 100644
--- a/libxslt.spec
+++ b/libxslt.spec
@@ -1,4 +1,5 @@
-%define anolis_release 2
+ExclusiveArch: x86_64 aarch64
+%define anolis_release 3
 Name:           libxslt
 Summary:        Library providing the Gnome XSLT engine
 Version:        1.1.39
@@ -10,6 +11,8 @@ Source0:        https://download.gnome.org/sources/%{name}/1.1/%{name}-%{version
 
 Provides: xsltproc = %{version}-%{release}
 
+# https://issues.redhat.com/browse/RHEL-83503
+Patch0000: libxslt-1.1.39-CVE-2024-55549.patch
 # https://gitlab.gnome.org/GNOME/libxslt/-/commit/c7c7f1f78dd202a053996fcefe57eb994aec8ef2
 Patch0001: bugfix-for-cve-2025-24855.patch
 
@@ -119,6 +122,9 @@ rm -vrf %{buildroot}%{_docdir}
 %{abidir}/libxsltmod.dump
 
 %changelog
+* Sun Mar 22 2026 wenjie2025 <wency.cn@gmail.com> - 1.1.39-3
+- Fix CVE-2024-55549 (RHEL-83503)
+
 * Mon Apr 14 2025 qizengtian <qizengtian@inspur.com> - 1.1.37-2
 - Fix CVE-2025-24855
 
@@ -134,4 +140,3 @@ rm -vrf %{buildroot}%{_docdir}
 
 * Thu Apr 07 2022 mgb01105731 <mgb01105731@alibaba-inc.com> - 1.1.35-1
 - Init from upstream version 1.1.35
-