diff --git a/debian/changelog b/debian/changelog
index b89dca9..0a4e0dc 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+wget (1.21.4-ok2) nile; urgency=medium
+
+  * SECURITY UPDATE: mishandling of semicolons in userinfo     -
+    debian/patches/CVE-2024-38428.patch: properly re-implement userinfo
+    parsing in src/url.c.     - CVE-2024-38428
+
+ -- liubo01 <liubo01@kylinos.cn>  Tue, 05 Nov 2024 09:41:58 +0800
+
 wget (1.21.4-ok1) nile; urgency=high
 
   * Build for openKylin.
diff --git a/debian/patches/0004-SECURITY-UPDATE.patch b/debian/patches/0004-SECURITY-UPDATE.patch
new file mode 100644
index 0000000..60b6215
--- /dev/null
+++ b/debian/patches/0004-SECURITY-UPDATE.patch
@@ -0,0 +1,66 @@
+From: liubo0711 <1191322237@qq.com>
+Date: Tue, 5 Nov 2024 09:41:58 +0800
+Subject: SECURITY UPDATE
+
+---
+ src/url.c | 40 ++++++++++++++++++++++++++++++++++------
+ 1 file changed, 34 insertions(+), 6 deletions(-)
+
+diff --git a/src/url.c b/src/url.c
+index 2ff0b55..0acd3f3 100644
+--- a/src/url.c
++++ b/src/url.c
+@@ -41,6 +41,7 @@ as that of the covered work.  */
+ #include "url.h"
+ #include "host.h"  /* for is_valid_ipv6_address */
+ #include "c-strcase.h"
++#include "c-ctype.h"
+ 
+ #ifdef HAVE_ICONV
+ # include <iconv.h>
+@@ -526,12 +527,39 @@ scheme_leading_string (enum url_scheme scheme)
+ static const char *
+ url_skip_credentials (const char *url)
+ {
+-  /* Look for '@' that comes before terminators, such as '/', '?',
+-     '#', or ';'.  */
+-  const char *p = (const char *)strpbrk (url, "@/?#;");
+-  if (!p || *p != '@')
+-    return url;
+-  return p + 1;
++  /*
++   * This whole file implements https://www.rfc-editor.org/rfc/rfc2396 .
++   * RFC 2396 is outdated since 2005 and needs a rewrite or a thorough re-visit.
++   *
++   * The RFC says
++   * server        = [ [ userinfo "@" ] hostport ]
++   * userinfo      = *( unreserved | escaped | ";" | ":" | "&" | "=" | "+" | "$" | "," )
++   * unreserved    = alphanum | mark
++   * mark          = "-" | "_" | "." | "!" | "~" | "*" | "'" | "(" | ")"
++   */
++  static const char *allowed = "-_.!~*'();:&=+$,";
++
++  for (const char *p = url; *p; p++)
++    {
++      if (c_isalnum(*p))
++        continue;
++
++      if (strchr(allowed, *p))
++        continue;
++
++      if (*p == '%' && c_isxdigit(p[1]) && c_isxdigit(p[2]))
++        {
++          p += 2;
++          continue;
++        }
++
++      if (*p == '@')
++        return p + 1;
++
++      break;
++    }
++
++  return url;
+ }
+ 
+ /* Parse credentials contained in [BEG, END).  The region is expected
diff --git a/debian/patches/series b/debian/patches/series
index daa608f..7f7a2f3 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,3 +1,4 @@
 wget-doc-remove-usr-local-in-sample.wgetrc
 wget-doc-remove-usr-local-in-wget.texi
 wget-passive_ftp-default
+0004-SECURITY-UPDATE.patch