diff --git a/Fix-Python-parser-to-mark-responses-without-length-a.patch b/Fix-Python-parser-to-mark-responses-without-length-a.patch
new file mode 100644
index 0000000..1e8bd2b
--- /dev/null
+++ b/Fix-Python-parser-to-mark-responses-without-length-a.patch
@@ -0,0 +1,57 @@
+From 3223e1209285d96cfe5ac92c68653c5690e6e721 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=E8=82=96=E5=9C=A8?= <xiaozai@kylinos.cn>
+Date: Mon, 6 May 2024 20:30:09 +0800
+Subject: [PATCH] Fix Python parser to mark responses without length as closing
+
+---
+ CHANGES/8320.bugfix.rst   |  1 +
+ aiohttp/http_parser.py    | 11 ++++++++++-
+ tests/test_http_parser.py |  2 +-
+ 3 files changed, 12 insertions(+), 2 deletions(-)
+ create mode 100644 CHANGES/8320.bugfix.rst
+
+diff --git a/CHANGES/8320.bugfix.rst b/CHANGES/8320.bugfix.rst
+new file mode 100644
+index 0000000..3823e24
+--- /dev/null
++++ b/CHANGES/8320.bugfix.rst
+@@ -0,0 +1 @@
++Fixed the pure python parser to mark a connection as closing when a response has no length -- by :user:`Dreamsorcerer`
+diff --git a/aiohttp/http_parser.py b/aiohttp/http_parser.py
+index 1877f55..d7b8dac 100644
+--- a/aiohttp/http_parser.py
++++ b/aiohttp/http_parser.py
+@@ -703,7 +703,16 @@ class HttpResponseParser(HttpParser[RawResponseMessage]):
+         ) = self.parse_headers(lines)
+ 
+         if close is None:
+-            close = version_o <= HttpVersion10
++            if version_o <= HttpVersion10:
++                close = True
++            # https://www.rfc-editor.org/rfc/rfc9112.html#name-message-body-length
++            elif 100 <= status_i < 200 or status_i in {204, 304}:
++                close = False
++            elif hdrs.CONTENT_LENGTH in headers or hdrs.TRANSFER_ENCODING in headers:
++                close = False
++            else:
++                # https://www.rfc-editor.org/rfc/rfc9112.html#section-6.3-2.8
++                close = True
+ 
+         return RawResponseMessage(
+             version_o,
+diff --git a/tests/test_http_parser.py b/tests/test_http_parser.py
+index b931730..0417fa4 100644
+--- a/tests/test_http_parser.py
++++ b/tests/test_http_parser.py
+@@ -743,7 +743,7 @@ def test_http_request_parser(parser) -> None:
+     assert msg.version == (1, 1)
+     assert msg.headers == CIMultiDict()
+     assert msg.raw_headers == ()
+-    assert not msg.should_close
++    assert msg.should_close
+     assert msg.compression is None
+     assert not msg.upgrade
+     assert not msg.chunked
+-- 
+2.33.0
+
diff --git a/python-aiohttp.spec b/python-aiohttp.spec
index afa513e..b72e9b9 100644
--- a/python-aiohttp.spec
+++ b/python-aiohttp.spec
@@ -1,7 +1,7 @@
 %global _empty_manifest_terminate_build 0
 Name:           python-aiohttp
 Version:        3.9.3
-Release:        3
+Release:        4
 Summary:        Async http client/server framework (asyncio)
 License:        Apache 2
 URL:            https://github.com/aio-libs/aiohttp
@@ -14,6 +14,8 @@ Patch1:         CVE-2024-30251.patch
 Patch2:         CVE-2024-30251-PR-8332-482e6cdf-backport-3.9-Add-set_content_dispos.patch
 # https://github.com/aio-libs/aiohttp/commit/f21c6f2ca512a026ce7f0f6c6311f62d6a638866
 Patch3:         CVE-2024-30251-PR-8335-5a6949da-backport-3.9-Add-Content-Dispositio.patch
+# https://github.com/aio-libs/aiohttp/commit/9ba9a4e531599b9cb2f8cc80effbde40c7eab0bd
+Patch4:         Fix-Python-parser-to-mark-responses-without-length-a.patch 
 
 Requires:       python3-attrs
 Requires:       python3-charset-normalizer
@@ -89,6 +91,9 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Mon May 06 2024 xiaozai <xiaozai@kylinos.cn> - 3.9.3-4
+- Fix Python parser to mark responses without length as closing
+
 * Mon May 06 2024 yaoxin <yao_xin001@hoperun.com> - 3.9.3-3
 - Fix CVE-2024-30251