[oe][meta-python][wrynose][PATCH 07/10] python3-aiohttp: fix CVE-2026-54277

From: Darsh Kelaiya <[email protected]>

This patch applies the upstream fix as referenced in [2], using
the commit shown in [1].

[1] https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d
[2] https://github.com/advisories/GHSA-63hw-fmq6-xxg2

Signed-off-by: Darsh Kelaiya <[email protected]>
---
Changes in v2
- Added the corresponding generated aiohttp/_http_parser.c changes.
- Updated cb_on_url() and cb_on_status() in the generated C parser to
  enforce max_line_size against the accumulated parser buffer.
- Ensured the security fix is included when Wrynose builds the
  generated C parser without regenerating it from the patched .pyx.
- Documented the Wrynose-specific backport changes in the patch
  metadata.
---
 .../python3-aiohttp/CVE-2026-54277.patch      | 249 ++++++++++++++++++
 .../python/python3-aiohttp_3.13.5.bb          |   1 +
 2 files changed, 250 insertions(+)
 create mode 100644 meta-python/recipes-devtools/python/python3-aiohttp/CVE-2026-54277.patch

diff --git a/meta-python/recipes-devtools/python/python3-aiohttp/CVE-2026-54277.patch b/meta-python/recipes-devtools/python/python3-aiohttp/CVE-2026-54277.patch
new file mode 100644
index 0000000000..db50155d33
--- /dev/null
+++ b/meta-python/recipes-devtools/python/python3-aiohttp/CVE-2026-54277.patch
@@ -0,0 +1,249 @@
+From f61e8949f10a0e77ceba28a6639627e6e57bf167 Mon Sep 17 00:00:00 2001
+From: "J. Nick Koston" <[email protected]>
+Date: Sun, 7 Jun 2026 00:33:03 -0500
+Subject: [PATCH] [PR #12826/36df6c13 backport][3.14] Enforce max_line_size on
+ fragmented request target and reason in C parser (#12837)
+
+CVE: CVE-2026-54277
+Upstream-Status: Backport [https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d]
+
+Backport Changes:
+- Added aiohttp/_http_parser.c because Wrynose builds the
+  pre-generated C parser without running Cython.
+- Updated cb_on_url() and cb_on_status() to enforce max_line_size
+  against the accumulated parser buffer.
+
+(cherry picked from commit 5ab61bb4cd88f19b712f12c7c9295fe262bf804d)
+Signed-off-by: Darsh Kelaiya <[email protected]>
+---
+ CHANGES/12826.bugfix.rst  |  1 +
+ aiohttp/_http_parser.c    | 36 ++++++++++++++++++------------------
+ aiohttp/_http_parser.pyx  |  4 ++--
+ tests/test_http_parser.py | 22 ++++++++++++++++++++++
+ 4 files changed, 43 insertions(+), 20 deletions(-)
+ create mode 100644 CHANGES/12826.bugfix.rst
+
+diff --git a/CHANGES/12826.bugfix.rst b/CHANGES/12826.bugfix.rst
+new file mode 100644
+index 000000000..7e095615d
+--- /dev/null
++++ b/CHANGES/12826.bugfix.rst
+@@ -0,0 +1 @@
++Fixed the C HTTP parser not enforcing ``max_line_size`` on a request target or response reason phrase that is split across multiple reads; each fragment was checked on its own, so an accumulated line could exceed the limit without raising ``LineTooLong``. The accumulated length is now checked, matching the pure-Python parser -- by :user:`bdraco`.
+diff --git a/aiohttp/_http_parser.c b/aiohttp/_http_parser.c
+index 911c9aa65..14c5b3350 100644
+--- a/aiohttp/_http_parser.c
++++ b/aiohttp/_http_parser.c
+@@ -14760,7 +14760,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+  *                    const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data             # <<<<<<<<<<<<<<
+  *     try:
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+ */
+   __pyx_t_1 = ((PyObject *)__pyx_v_parser->data);
+   __Pyx_INCREF(__pyx_t_1);
+@@ -14771,7 +14771,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+  *                    const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:             # <<<<<<<<<<<<<<
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             status = pyparser._buf + at[:length]
+ */
+   {
+@@ -14786,16 +14786,16 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+       /* "aiohttp/_http_parser.pyx":721
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:
+- *         if length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
+  *             status = pyparser._buf + at[:length]
+  *             raise LineTooLong(status[:100] + b"...", pyparser._max_line_size)
+ */
+-      __pyx_t_5 = (__pyx_v_length > __pyx_v_pyparser->_max_line_size);
++      __pyx_t_5 = ((__Pyx_PyByteArray_GET_SIZE(__pyx_v_pyparser->_buf) + __pyx_v_length) > __pyx_v_pyparser->_max_line_size);
+       if (unlikely(__pyx_t_5)) {
+ 
+         /* "aiohttp/_http_parser.pyx":722
+  *     try:
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             status = pyparser._buf + at[:length]             # <<<<<<<<<<<<<<
+  *             raise LineTooLong(status[:100] + b"...", pyparser._max_line_size)
+  *         extend(pyparser._buf, at, length)
+@@ -14809,7 +14809,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+         __pyx_t_6 = 0;
+ 
+         /* "aiohttp/_http_parser.pyx":723
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             status = pyparser._buf + at[:length]
+  *             raise LineTooLong(status[:100] + b"...", pyparser._max_line_size)             # <<<<<<<<<<<<<<
+  *         extend(pyparser._buf, at, length)
+@@ -14854,7 +14854,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+         /* "aiohttp/_http_parser.pyx":721
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:
+- *         if length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
+  *             status = pyparser._buf + at[:length]
+  *             raise LineTooLong(status[:100] + b"...", pyparser._max_line_size)
+ */
+@@ -14878,7 +14878,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+  *                    const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:             # <<<<<<<<<<<<<<
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             status = pyparser._buf + at[:length]
+ */
+     }
+@@ -14968,7 +14968,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_url(llhttp_t *__pyx_v_parser, c
+  *                    const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:             # <<<<<<<<<<<<<<
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             status = pyparser._buf + at[:length]
+ */
+     __pyx_L5_except_error:;
+@@ -15045,7 +15045,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+  *                       const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data             # <<<<<<<<<<<<<<
+  *     try:
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+ */
+   __pyx_t_1 = ((PyObject *)__pyx_v_parser->data);
+   __Pyx_INCREF(__pyx_t_1);
+@@ -15056,7 +15056,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+  *                       const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:             # <<<<<<<<<<<<<<
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             reason = pyparser._buf + at[:length]
+ */
+   {
+@@ -15071,16 +15071,16 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+       /* "aiohttp/_http_parser.pyx":736
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:
+- *         if length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
+  *             reason = pyparser._buf + at[:length]
+  *             raise LineTooLong(reason[:100] + b"...", pyparser._max_line_size)
+ */
+-      __pyx_t_5 = (__pyx_v_length > __pyx_v_pyparser->_max_line_size);
++      __pyx_t_5 = ((__Pyx_PyByteArray_GET_SIZE(__pyx_v_pyparser->_buf) + __pyx_v_length) > __pyx_v_pyparser->_max_line_size);
+       if (unlikely(__pyx_t_5)) {
+ 
+         /* "aiohttp/_http_parser.pyx":737
+  *     try:
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             reason = pyparser._buf + at[:length]             # <<<<<<<<<<<<<<
+  *             raise LineTooLong(reason[:100] + b"...", pyparser._max_line_size)
+  *         extend(pyparser._buf, at, length)
+@@ -15094,7 +15094,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+         __pyx_t_6 = 0;
+ 
+         /* "aiohttp/_http_parser.pyx":738
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             reason = pyparser._buf + at[:length]
+  *             raise LineTooLong(reason[:100] + b"...", pyparser._max_line_size)             # <<<<<<<<<<<<<<
+  *         extend(pyparser._buf, at, length)
+@@ -15139,7 +15139,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+         /* "aiohttp/_http_parser.pyx":736
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:
+- *         if length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:             # <<<<<<<<<<<<<<
+  *             reason = pyparser._buf + at[:length]
+  *             raise LineTooLong(reason[:100] + b"...", pyparser._max_line_size)
+ */
+@@ -15163,7 +15163,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+  *                       const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:             # <<<<<<<<<<<<<<
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             reason = pyparser._buf + at[:length]
+ */
+     }
+@@ -15253,7 +15253,7 @@ static int __pyx_f_7aiohttp_12_http_parser_cb_on_status(llhttp_t *__pyx_v_parser
+  *                       const char *at, size_t length) except -1:
+  *     cdef HttpParser pyparser = <HttpParser>parser.data
+  *     try:             # <<<<<<<<<<<<<<
+- *         if length > pyparser._max_line_size:
++ *         if len(pyparser._buf) + length > pyparser._max_line_size:
+  *             reason = pyparser._buf + at[:length]
+ */
+     __pyx_L5_except_error:;
+diff --git a/aiohttp/_http_parser.pyx b/aiohttp/_http_parser.pyx
+index 5da835bc6..e1edee310 100644
+--- a/aiohttp/_http_parser.pyx
++++ b/aiohttp/_http_parser.pyx
+@@ -718,7 +718,7 @@ cdef int cb_on_url(cparser.llhttp_t* parser,
+                    const char *at, size_t length) except -1:
+     cdef HttpParser pyparser = <HttpParser>parser.data
+     try:
+-        if length > pyparser._max_line_size:
++        if len(pyparser._buf) + length > pyparser._max_line_size:
+             status = pyparser._buf + at[:length]
+             raise LineTooLong(status[:100] + b"...", pyparser._max_line_size)
+         extend(pyparser._buf, at, length)
+@@ -733,7 +733,7 @@ cdef int cb_on_status(cparser.llhttp_t* parser,
+                       const char *at, size_t length) except -1:
+     cdef HttpParser pyparser = <HttpParser>parser.data
+     try:
+-        if length > pyparser._max_line_size:
++        if len(pyparser._buf) + length > pyparser._max_line_size:
+             reason = pyparser._buf + at[:length]
+             raise LineTooLong(reason[:100] + b"...", pyparser._max_line_size)
+         extend(pyparser._buf, at, length)
+diff --git a/tests/test_http_parser.py b/tests/test_http_parser.py
+index 25604dbcc..8cb591f20 100644
+--- a/tests/test_http_parser.py
++++ b/tests/test_http_parser.py
+@@ -1272,6 +1272,17 @@ def test_http_request_max_status_line_under_limit(parser: HttpRequestParser) ->
+     assert msg.url == URL("/path" + path.decode())
+ 
+ 
++def test_http_request_max_status_line_fragmented(
++    parser: HttpRequestParser,
++) -> None:
++    # Split an overlong request target across reads so that each callback
++    # fragment is under the limit but the accumulated target is not.
++    match = "400, message:\n  Got more than 8190 bytes when reading"
++    with pytest.raises(http_exceptions.LineTooLong, match=match):
++        parser.feed_data(b"GET /" + b"a" * 8000)
++        parser.feed_data(b"a" * 8000 + b" HTTP/1.1\r\nHost: a\r\n\r\n")
++
++
+ def test_http_response_parser_utf8(response) -> None:
+     text = "HTTP/1.1 200 Ok\r\nx-test:тест\r\n\r\n".encode()
+ 
+@@ -1349,6 +1360,17 @@ def test_http_response_parser_status_line_under_limit(
+     assert msg.reason == reason.decode()
+ 
+ 
++def test_http_response_parser_status_line_too_long_fragmented(
++    response: HttpResponseParser,
++) -> None:
++    # Split an overlong reason phrase across reads so that each callback
++    # fragment is under the limit but the accumulated reason is not.
++    match = "400, message:\n  Got more than 8190 bytes when reading"
++    with pytest.raises(http_exceptions.LineTooLong, match=match):
++        response.feed_data(b"HTTP/1.1 200 " + b"a" * 8000)
++        response.feed_data(b"a" * 8000 + b"\r\n\r\n")
++
++
+ def test_http_response_parser_bad_version(response) -> None:
+     with pytest.raises(http_exceptions.BadHttpMessage):
+         response.feed_data(b"HT/11 200 Ok\r\n\r\n")
+-- 
+2.35.6
+
diff --git a/meta-python/recipes-devtools/python/python3-aiohttp_3.13.5.bb b/meta-python/recipes-devtools/python/python3-aiohttp_3.13.5.bb
index 3c07933200..1a6baebfe9 100644
--- a/meta-python/recipes-devtools/python/python3-aiohttp_3.13.5.bb
+++ b/meta-python/recipes-devtools/python/python3-aiohttp_3.13.5.bb
@@ -13,6 +13,7 @@ SRC_URI += " \
     file://CVE-2026-54274.patch \
     file://CVE-2026-54275.patch \
     file://CVE-2026-54276.patch \
+    file://CVE-2026-54277.patch \
 "
 
 CVE_PRODUCT = "aiohttp"
-- 
2.35.6