On EL 9, also supports reparse deferral in expat

This replaces one downstream-only patch with another.
Yet arguably, this is the safer thing to do.

Read the patch description for details; won't copy paste them here.

Also, require expat >= version-release when expat < 2.7.4.

Assisted-By: Claude Opus 4.6

00251-change-user-install-location.patch

@@ -30,7 +30,7 @@ Co-authored-by: Lumír Balhar <frenzy.madness@gmail.com>
  3 files changed, 72 insertions(+), 4 deletions(-)
 
 diff --git a/Lib/site.py b/Lib/site.py
-index aedf36399c..2ae49a8029 100644
+index 041dca113a..ca6320df2f 100644
 --- a/Lib/site.py
 +++ b/Lib/site.py
 @@ -415,8 +415,15 @@ def getsitepackages(prefixes=None):
@@ -51,7 +51,7 @@ index aedf36399c..2ae49a8029 100644
          if os.path.isdir(sitedir):
              addsitedir(sitedir, known_paths)
 diff --git a/Lib/sysconfig/__init__.py b/Lib/sysconfig/__init__.py
-index f7bd675bb3..f1ff347c3d 100644
+index 43edebce34..40e85568ea 100644
 --- a/Lib/sysconfig/__init__.py
 +++ b/Lib/sysconfig/__init__.py
 @@ -106,6 +106,12 @@
@@ -130,7 +130,7 @@ index f7bd675bb3..f1ff347c3d 100644
          # On Windows we want to substitute 'lib' for schemes rather
          # than the native value (without modifying vars, in case it
 diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py
-index 9723300f51..310706652a 100644
+index ce17206a3c..fd95071099 100644
 --- a/Lib/test/test_sysconfig.py
 +++ b/Lib/test/test_sysconfig.py
 @@ -130,8 +130,19 @@ def test_get_path(self):
@@ -154,7 +154,7 @@ index 9723300f51..310706652a 100644
                      os.path.normpath(expected),
                  )
  
-@@ -393,7 +404,7 @@ def test_get_config_h_filename(self):
+@@ -395,7 +406,7 @@ def test_get_config_h_filename(self):
          self.assertTrue(os.path.isfile(config_h), config_h)
  
      def test_get_scheme_names(self):
@@ -163,7 +163,7 @@ index 9723300f51..310706652a 100644
          if HAS_USER_BASE:
              wanted.extend(['nt_user', 'osx_framework_user', 'posix_user'])
          self.assertEqual(get_scheme_names(), tuple(sorted(wanted)))
-@@ -405,6 +416,8 @@ def test_symlink(self): # Issue 7880
+@@ -407,6 +418,8 @@ def test_symlink(self): # Issue 7880
              cmd = "-c", "import sysconfig; print(sysconfig.get_platform())"
              self.assertEqual(py.call_real(*cmd), py.call_link(*cmd))
  

00461-downstream-only-install-wheel-in-test-venvs-when-setuptools-71.patch

@@ -1,32 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz>
-Date: Fri, 25 Apr 2025 09:33:37 +0200
-Subject: 00461: Downstream only: Install wheel in test venvs when setuptools <
- 71
-
----
- Lib/test/support/__init__.py | 9 ++++++++-
- 1 file changed, 8 insertions(+), 1 deletion(-)
-
-diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
-index 4605938b87..a0055d6887 100644
---- a/Lib/test/support/__init__.py
-+++ b/Lib/test/support/__init__.py
-@@ -2462,9 +2462,16 @@ def run_command(cmd):
-         else:
-             python = os.path.join(venv, 'bin', python_exe)
- 
-+        setuptools_whl = _findwheel('setuptools')
-+        whl_filename = os.path.basename(setuptools_whl)
-+        setuptools_major = int(whl_filename.split('-')[1].split('.')[0])
-+        if setuptools_major >= 71:  # we need 70.1+, but that's OK
-+            wheels = (setuptools_whl,)
-+        else:
-+            wheels = (setuptools_whl, _findwheel('wheel'))
-         cmd = (python, '-X', 'dev',
-                '-m', 'pip', 'install',
--               _findwheel('setuptools'),
-+               *wheels,
-                )
-         run_command(cmd)
- 

00464-enable-pac-and-bti-protections-for-aarch64.patch

@@ -1,102 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Charalampos Stratakis <cstratak@redhat.com>
-Date: Tue, 3 Jun 2025 03:02:15 +0200
-Subject: 00464: Enable PAC and BTI protections for aarch64
-
-Apply protection against ROP/JOP attacks for aarch64 on asm_trampoline.S
-
-The BTI flag must be applied in the assembler sources for this class
-of attacks to be mitigated on newer aarch64 processors.
-
-Upstream PR: https://github.com/python/cpython/pull/130864/files
-
-The upstream patch is incomplete but only for the case where
-frame pointers are not used on 3.13+.
-
-Since on Fedora we always compile with frame pointers the BTI/PAC
-hardware protections can be enabled without losing Perf unwinding.
----
- Python/asm_trampoline.S         |  4 +++
- Python/asm_trampoline_aarch64.h | 50 +++++++++++++++++++++++++++++++++
- 2 files changed, 54 insertions(+)
- create mode 100644 Python/asm_trampoline_aarch64.h
-
-diff --git a/Python/asm_trampoline.S b/Python/asm_trampoline.S
-index a14e68c0e8..2513cde4e7 100644
---- a/Python/asm_trampoline.S
-+++ b/Python/asm_trampoline.S
-@@ -1,3 +1,5 @@
-+#include "asm_trampoline_aarch64.h"
-+
-     .text
-     .globl	_Py_trampoline_func_start
- # The following assembly is equivalent to:
-@@ -21,10 +23,12 @@ _Py_trampoline_func_start:
- #if defined(__aarch64__) && defined(__AARCH64EL__) && !defined(__ILP32__)
-     // ARM64 little endian, 64bit ABI
-     // generate with aarch64-linux-gnu-gcc 12.1
-+    SIGN_LR
-     stp     x29, x30, [sp, -16]!
-     mov     x29, sp
-     blr     x3
-     ldp     x29, x30, [sp], 16
-+    VERIFY_LR
-     ret
- #endif
- #ifdef __riscv
-diff --git a/Python/asm_trampoline_aarch64.h b/Python/asm_trampoline_aarch64.h
-new file mode 100644
-index 0000000000..4b0ec4a7dc
---- /dev/null
-+++ b/Python/asm_trampoline_aarch64.h
-@@ -0,0 +1,50 @@
-+#ifndef ASM_TRAMPOLINE_AARCH_64_H_
-+#define ASM_TRAMPOLINE_AARCH_64_H_
-+
-+/*
-+ * References:
-+ *  - https://developer.arm.com/documentation/101028/0012/5--Feature-test-macros
-+ *  - https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst
-+ */
-+
-+#if defined(__ARM_FEATURE_BTI_DEFAULT) && __ARM_FEATURE_BTI_DEFAULT == 1
-+  #define BTI_J hint 36 /* bti j: for jumps, IE br instructions */
-+  #define BTI_C hint 34  /* bti c: for calls, IE bl instructions */
-+  #define GNU_PROPERTY_AARCH64_BTI 1 /* bit 0 GNU Notes is for BTI support */
-+#else
-+  #define BTI_J
-+  #define BTI_C
-+  #define GNU_PROPERTY_AARCH64_BTI 0
-+#endif
-+
-+#if defined(__ARM_FEATURE_PAC_DEFAULT)
-+  #if __ARM_FEATURE_PAC_DEFAULT & 1
-+    #define SIGN_LR hint 25 /* paciasp: sign with the A key */
-+    #define VERIFY_LR hint 29 /* autiasp: verify with the A key */
-+  #elif __ARM_FEATURE_PAC_DEFAULT & 2
-+    #define SIGN_LR hint 27 /* pacibsp: sign with the b key */
-+    #define VERIFY_LR hint 31 /* autibsp: verify with the b key */
-+  #endif
-+  #define GNU_PROPERTY_AARCH64_POINTER_AUTH 2 /* bit 1 GNU Notes is for PAC support */
-+#else
-+  #define SIGN_LR BTI_C
-+  #define VERIFY_LR
-+  #define GNU_PROPERTY_AARCH64_POINTER_AUTH 0
-+#endif
-+
-+/* Add the BTI and PAC support to GNU Notes section */
-+#if GNU_PROPERTY_AARCH64_BTI != 0 || GNU_PROPERTY_AARCH64_POINTER_AUTH != 0
-+    .pushsection .note.gnu.property, "a"; /* Start a new allocatable section */
-+    .balign 8; /* align it on a byte boundry */
-+    .long 4; /* size of "GNU\0" */
-+    .long 0x10; /* size of descriptor */
-+    .long 0x5; /* NT_GNU_PROPERTY_TYPE_0 */
-+    .asciz "GNU";
-+    .long 0xc0000000; /* GNU_PROPERTY_AARCH64_FEATURE_1_AND */
-+    .long 4; /* Four bytes of data */
-+    .long (GNU_PROPERTY_AARCH64_BTI|GNU_PROPERTY_AARCH64_POINTER_AUTH); /* BTI or PAC is enabled */
-+    .long 0; /* padding for 8 byte alignment */
-+    .popsection; /* end the section */
-+#endif
-+
-+#endif

00466-downstream-only-lower-xml_combined_version-threshold-for-reparse-deferral.patch

@@ -0,0 +1,133 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz>
+Date: Wed, 12 Aug 2026 15:18:39 +0200
+Subject: 00466: Downstream only: Lower XML_COMBINED_VERSION threshold for
+ reparse deferral
+
+RHEL 9 expat 2.5.0 has XML_SetReparseDeferralEnabled backported
+via the CVE-2023-52425 fix, but XML_COMBINED_VERSION remains 20500.
+CPython's #if XML_COMBINED_VERSION >= 20600 guards compile the setter
+as a no-op, so SetReparseDeferralEnabled silently does nothing and
+GetReparseDeferralEnabled always returns False, even though the expat
+library actually supports (and enables) reparse deferral.
+
+Lower the threshold from 20600 to 20500 so that CPython uses the
+backported function. This makes the Python API actually work on RHEL 9
+and fixes test failures (test_reparse_deferral_disabled,
+test_flush_reparse_deferral_disabled, test_simple_xml_chunk_*).
+
+The spec file BuildRequires expat-devel >= 2.5.0-2 to ensure the
+backported function is available.
+---
+ Lib/test/test_pyexpat.py   | 6 +++---
+ Lib/test/test_sax.py       | 4 ++--
+ Lib/test/test_xml_etree.py | 4 ++--
+ Modules/pyexpat.c          | 6 +++---
+ 4 files changed, 10 insertions(+), 10 deletions(-)
+
+diff --git a/Lib/test/test_pyexpat.py b/Lib/test/test_pyexpat.py
+index ae7cec6540..7f73a8c5e7 100644
+--- a/Lib/test/test_pyexpat.py
++++ b/Lib/test/test_pyexpat.py
+@@ -1001,7 +1001,7 @@ def test_error_path_no_crash(self):
+ class ReparseDeferralTest(unittest.TestCase):
+     def test_getter_setter_round_trip(self):
+         parser = expat.ParserCreate()
+-        enabled = (expat.version_info >= (2, 6, 0))
++        enabled = (expat.version_info >= (2, 5, 0))
+ 
+         self.assertIs(parser.GetReparseDeferralEnabled(), enabled)
+         parser.SetReparseDeferralEnabled(False)
+@@ -1010,7 +1010,7 @@ def test_getter_setter_round_trip(self):
+         self.assertIs(parser.GetReparseDeferralEnabled(), enabled)
+ 
+     def test_reparse_deferral_enabled(self):
+-        if expat.version_info < (2, 6, 0):
++        if expat.version_info < (2, 5, 0):
+             self.skipTest(f'Expat {expat.version_info} does not '
+                           'support reparse deferral')
+ 
+@@ -1041,7 +1041,7 @@ def start_element(name, _):
+ 
+         parser = expat.ParserCreate()
+         parser.StartElementHandler = start_element
+-        if expat.version_info >= (2, 6, 0):
++        if expat.version_info >= (2, 5, 0):
+             parser.SetReparseDeferralEnabled(False)
+         self.assertFalse(parser.GetReparseDeferralEnabled())
+ 
+diff --git a/Lib/test/test_sax.py b/Lib/test/test_sax.py
+index 9b3014a94a..0e38c9488e 100644
+--- a/Lib/test/test_sax.py
++++ b/Lib/test/test_sax.py
+@@ -1215,7 +1215,7 @@ def test_expat_incremental_reset(self):
+ 
+         self.assertEqual(result.getvalue(), start + b"<doc>text</doc>")
+ 
+-    @unittest.skipIf(pyexpat.version_info < (2, 6, 0),
++    @unittest.skipIf(pyexpat.version_info < (2, 5, 0),
+                      f'Expat {pyexpat.version_info} does not '
+                      'support reparse deferral')
+     def test_flush_reparse_deferral_enabled(self):
+@@ -1249,7 +1249,7 @@ def test_flush_reparse_deferral_disabled(self):
+         for chunk in ("<doc", ">"):
+             parser.feed(chunk)
+ 
+-        if pyexpat.version_info >= (2, 6, 0):
++        if pyexpat.version_info >= (2, 5, 0):
+             parser._parser.SetReparseDeferralEnabled(False)
+             self.assertEqual(result.getvalue(), start)  # i.e. no elements started
+ 
+diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py
+index 4a76a5be1e..effb899d7b 100644
+--- a/Lib/test/test_xml_etree.py
++++ b/Lib/test/test_xml_etree.py
+@@ -1804,7 +1804,7 @@ def test_unknown_event(self):
+         with self.assertRaisesRegex(ValueError, "unknown event 'bogus'"):
+             ET.XMLPullParser(events=(x.decode() for x in (b'start', b'end', b'bogus')))
+ 
+-    @unittest.skipIf(pyexpat.version_info < (2, 6, 0),
++    @unittest.skipIf(pyexpat.version_info < (2, 5, 0),
+                      f'Expat {pyexpat.version_info} does not '
+                      'support reparse deferral')
+     def test_flush_reparse_deferral_enabled(self):
+@@ -1834,7 +1834,7 @@ def test_flush_reparse_deferral_disabled(self):
+         for chunk in ("<doc", ">"):
+             parser.feed(chunk)
+ 
+-        if pyexpat.version_info >= (2, 6, 0):
++        if pyexpat.version_info >= (2, 5, 0):
+             if not ET is pyET:
+                 self.skipTest(f'XMLParser.(Get|Set)ReparseDeferralEnabled '
+                               'methods not available in C')
+diff --git a/Modules/pyexpat.c b/Modules/pyexpat.c
+index 9e5d84eb5e..b008fe66c1 100644
+--- a/Modules/pyexpat.c
++++ b/Modules/pyexpat.c
+@@ -781,7 +781,7 @@ pyexpat_xmlparser_SetReparseDeferralEnabled_impl(xmlparseobject *self,
+                                                  int enabled)
+ /*[clinic end generated code: output=5ec539e3b63c8c49 input=021eb9e0bafc32c5]*/
+ {
+-#if XML_COMBINED_VERSION >= 20600
++#if XML_COMBINED_VERSION >= 20500
+     XML_SetReparseDeferralEnabled(self->itself, enabled ? XML_TRUE : XML_FALSE);
+     self->reparse_deferral_enabled = (bool)enabled;
+ #endif
+@@ -1446,7 +1446,7 @@ newxmlparseobject(pyexpat_state *state, const char *encoding,
+     self->ns_prefixes = 0;
+     self->handlers = NULL;
+     self->intern = Py_XNewRef(intern);
+-#if XML_COMBINED_VERSION >= 20600
++#if XML_COMBINED_VERSION >= 20500
+     self->reparse_deferral_enabled = true;
+ #else
+     self->reparse_deferral_enabled = false;
+@@ -2332,7 +2332,7 @@ pyexpat_exec(PyObject *mod)
+ #else
+     capi->SetHashSalt16Bytes = NULL;
+ #endif
+-#if XML_COMBINED_VERSION >= 20600
++#if XML_COMBINED_VERSION >= 20500
+     capi->SetReparseDeferralEnabled = XML_SetReparseDeferralEnabled;
+ #else
+     capi->SetReparseDeferralEnabled = NULL;

00466-downstream-only-skip-tests-not-working-with-older-expat-version.patch

@@ -1,69 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Karolina Surma <ksurma@redhat.com>
-Date: Tue, 24 Jun 2025 11:12:13 +0200
-Subject: 00466: Downstream only: Skip tests not working with older expat
- version
-
-We want to run these tests in Fedora and EPEL 10, but not in EPEL 9,
-which has too old version of expat. We set the upper bound version
-in the conditionalized skip to a release available in CentOS Stream 10,
-which is tested as working.
----
- Lib/test/test_pyexpat.py   | 2 ++
- Lib/test/test_sax.py       | 2 ++
- Lib/test/test_xml_etree.py | 6 ++++++
- 3 files changed, 10 insertions(+)
-
-diff --git a/Lib/test/test_pyexpat.py b/Lib/test/test_pyexpat.py
-index a091430463..55ebf34c52 100644
---- a/Lib/test/test_pyexpat.py
-+++ b/Lib/test/test_pyexpat.py
-@@ -826,6 +826,8 @@ def start_element(name, _):
- 
-         self.assertEqual(started, ['doc'])
- 
-+    @unittest.skipIf(expat.version_info < (2, 7, 1),
-+                     f"Skip for expat < 2.7.1 (version available in RHEL 10)")
-     def test_reparse_deferral_disabled(self):
-         started = []
- 
-diff --git a/Lib/test/test_sax.py b/Lib/test/test_sax.py
-index 9b3014a94a..90401e0d8f 100644
---- a/Lib/test/test_sax.py
-+++ b/Lib/test/test_sax.py
-@@ -1240,6 +1240,8 @@ def test_flush_reparse_deferral_enabled(self):
- 
-         self.assertEqual(result.getvalue(), start + b"<doc></doc>")
- 
-+    @unittest.skipIf(pyexpat.version_info < (2, 7, 1),
-+                     f"Skip for expat < 2.7.1 (version available in RHEL 10)")
-     def test_flush_reparse_deferral_disabled(self):
-         result = BytesIO()
-         xmlgen = XMLGenerator(result)
-diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py
-index 78598b35da..802d1399ea 100644
---- a/Lib/test/test_xml_etree.py
-+++ b/Lib/test/test_xml_etree.py
-@@ -1548,9 +1548,13 @@ def test_simple_xml(self, chunk_size=None, flush=False):
-         self.assert_event_tags(parser, [('end', 'root')])
-         self.assertIsNone(parser.close())
- 
-+    @unittest.skipIf(pyexpat.version_info < (2, 7, 1),
-+                     f"Skip for expat < 2.7.1 (version available in RHEL 10)")
-     def test_simple_xml_chunk_1(self):
-         self.test_simple_xml(chunk_size=1, flush=True)
- 
-+    @unittest.skipIf(pyexpat.version_info < (2, 7, 1),
-+                     f"Skip for expat < 2.7.1 (version available in RHEL 10)")
-     def test_simple_xml_chunk_5(self):
-         self.test_simple_xml(chunk_size=5, flush=True)
- 
-@@ -1777,6 +1781,8 @@ def test_flush_reparse_deferral_enabled(self):
- 
-         self.assert_event_tags(parser, [('end', 'doc')])
- 
-+    @unittest.skipIf(pyexpat.version_info < (2, 7, 1),
-+                     f"Skip for expat < 2.7.1 (version available in RHEL 10)")
-     def test_flush_reparse_deferral_disabled(self):
-         parser = ET.XMLPullParser(events=('start', 'end'))
- 

00475-cve-2025-15367.patch

@@ -0,0 +1,59 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Seth Michael Larson <seth@python.org>
+Date: Tue, 20 Jan 2026 14:46:32 -0600
+Subject: 00475: CVE-2025-15367
+
+Reject control characters in POP3 commands
+---
+ Lib/poplib.py                                             | 2 ++
+ Lib/test/test_poplib.py                                   | 8 ++++++++
+ .../2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst        | 1 +
+ 3 files changed, 11 insertions(+)
+ create mode 100644 Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst
+
+diff --git a/Lib/poplib.py b/Lib/poplib.py
+index 4469bff44b..b97274c5c3 100644
+--- a/Lib/poplib.py
++++ b/Lib/poplib.py
+@@ -122,6 +122,8 @@ def _putline(self, line):
+     def _putcmd(self, line):
+         if self._debugging: print('*cmd*', repr(line))
+         line = bytes(line, self.encoding)
++        if re.search(b'[\x00-\x1F\x7F]', line):
++            raise ValueError('Control characters not allowed in commands')
+         self._putline(line)
+ 
+ 
+diff --git a/Lib/test/test_poplib.py b/Lib/test/test_poplib.py
+index eb6dab4015..bd621caee4 100644
+--- a/Lib/test/test_poplib.py
++++ b/Lib/test/test_poplib.py
+@@ -18,6 +18,7 @@
+ from test.support import asynchat
+ from test.support import asyncore
+ from test.support.testcase import ExtraAssertions
++from test.support import control_characters_c0
+ 
+ 
+ test_support.requires_working_socket(module=True)
+@@ -396,6 +397,13 @@ def test_quit(self):
+         self.assertIsNone(self.client.sock)
+         self.assertIsNone(self.client.file)
+ 
++    def test_control_characters(self):
++        for c0 in control_characters_c0():
++            with self.assertRaises(ValueError):
++                self.client.user(f'user{c0}')
++            with self.assertRaises(ValueError):
++                self.client.pass_(f'{c0}pass')
++
+     @requires_ssl
+     def test_stls_capa(self):
+         capa = self.client.capa()
+diff --git a/Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst b/Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst
+new file mode 100644
+index 0000000000..3cde4df3e0
+--- /dev/null
++++ b/Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst
+@@ -0,0 +1 @@
++Reject control characters in POP3 commands.

00477-raise-an-error-when-importing-stdlib-modules-compiled-for-a-different-python-version.patch

@@ -0,0 +1,173 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Petr Viktorin <encukou@gmail.com>
+Date: Mon, 9 Feb 2026 10:44:21 +0100
+Subject: 00477: Raise an error when importing stdlib modules compiled for a
+ different Python version
+
+This is a downstream workaround "implementing" python#137212 -
+the mechanism for the check exists in Python 3.15+, where it needs to be
+added to the standard library modules.
+In Fedora, we need it also in previous Python versions, as we experience
+segmentation fault when importing stdlib modules after update while
+Python is running.
+
+_curses, _tkinter, _tracemalloc and readline are not calling PyModuleDef_Init,
+which is modified with this patch, hence they need a
+direct call to the check function.
+
+Co-Authored-By: Karolina Surma <ksurma@redhat.com>
+---
+ Include/moduleobject.h  | 43 +++++++++++++++++++++++++++++++++++++++++
+ Makefile.pre.in         |  3 +++
+ Modules/_cursesmodule.c |  6 ++++++
+ Modules/_tkinter.c      |  6 ++++++
+ Modules/_tracemalloc.c  |  6 ++++++
+ Modules/readline.c      |  6 ++++++
+ Objects/moduleobject.c  |  1 +
+ 7 files changed, 71 insertions(+)
+
+diff --git a/Include/moduleobject.h b/Include/moduleobject.h
+index 2a17c891dd..64017c666c 100644
+--- a/Include/moduleobject.h
++++ b/Include/moduleobject.h
+@@ -116,6 +116,49 @@ struct PyModuleDef {
+   freefunc m_free;
+ };
+ 
++#if defined(_PyHack_check_version_on_modinit) && defined(Py_BUILD_CORE)
++/* The mechanism for the check has been implemented on Python 3.15+:
++ * https://github.com/python/cpython/pull/137212.
++ * In Fedora, we need this in older Pythons too:
++ * if somebody attempts to import a module compiled for a different Python version,
++ * instead of segmentation fault a meaningful error is raised.
++ */
++PyAPI_DATA(const unsigned long) Py_Version;
++
++static inline int
++_PyHack_CheckInternalAPIVersion(const char *mod_name)
++{
++    if (PY_VERSION_HEX != Py_Version) {
++        PyErr_Format(
++            PyExc_ImportError,
++            "internal Python C API version mismatch: "
++            "module %s compiled with %lu.%lu.%lu; "
++            "runtime version is %lu.%lu.%lu",
++            mod_name,
++            (const unsigned long)((PY_VERSION_HEX >> 24) & 0xFF),
++            (const unsigned long)((PY_VERSION_HEX >> 16) & 0xFF),
++            (const unsigned long)((PY_VERSION_HEX >> 8) & 0xFF),
++            (const unsigned long)((Py_Version >> 24) & 0xFF),
++            (const unsigned long)((Py_Version >> 16) & 0xFF),
++            (const unsigned long)((Py_Version >> 8) & 0xFF)
++        );
++        return -1;
++    }
++    return 0;
++}
++
++static inline PyObject *
++PyModuleDef_Init_with_check(PyModuleDef *def)
++{
++    if (_PyHack_CheckInternalAPIVersion(def->m_name) < 0) {
++        return NULL;
++    }
++    return PyModuleDef_Init(def);
++}
++
++#define PyModuleDef_Init PyModuleDef_Init_with_check
++#endif
++
+ #ifdef __cplusplus
+ }
+ #endif
+diff --git a/Makefile.pre.in b/Makefile.pre.in
+index 2363b99a25..f1a07645f0 100644
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -3159,3 +3159,6 @@ MODULE__MULTIBYTECODEC_DEPS=$(srcdir)/Modules/cjkcodecs/multibytecodec.h
+ # Local Variables:
+ # mode: makefile
+ # End:
++
++# Fedora-specific, downstream only
++PY_STDMODULE_CFLAGS += -D_PyHack_check_version_on_modinit=1
+diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
+index 1996488a0e..cfdffd8ec4 100644
+--- a/Modules/_cursesmodule.c
++++ b/Modules/_cursesmodule.c
+@@ -5011,6 +5011,12 @@ curses_destructor(PyObject *op)
+ PyMODINIT_FUNC
+ PyInit__curses(void)
+ {
++    #ifdef _PyHack_check_version_on_modinit
++        if (_PyHack_CheckInternalAPIVersion("_curses") < 0) {
++            return NULL;
++        }
++    #endif
++
+     PyObject *m, *d, *v, *c_api_object;
+ 
+     /* Initialize object type */
+diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
+index 4e8d75e8e1..32e58755aa 100644
+--- a/Modules/_tkinter.c
++++ b/Modules/_tkinter.c
+@@ -3499,6 +3499,12 @@ static struct PyModuleDef _tkintermodule = {
+ PyMODINIT_FUNC
+ PyInit__tkinter(void)
+ {
++    #ifdef _PyHack_check_version_on_modinit
++        if (_PyHack_CheckInternalAPIVersion("_tkinter") < 0) {
++            return NULL;
++        }
++    #endif
++
+     PyObject *m, *uexe, *cexe;
+ 
+     tcl_lock = PyThread_allocate_lock();
+diff --git a/Modules/_tracemalloc.c b/Modules/_tracemalloc.c
+index 0b85187e5f..87f358ed07 100644
+--- a/Modules/_tracemalloc.c
++++ b/Modules/_tracemalloc.c
+@@ -215,6 +215,12 @@ static struct PyModuleDef module_def = {
+ PyMODINIT_FUNC
+ PyInit__tracemalloc(void)
+ {
++    #ifdef _PyHack_check_version_on_modinit
++        if (_PyHack_CheckInternalAPIVersion("_tracemalloc") < 0) {
++            return NULL;
++        }
++    #endif
++
+     PyObject *m;
+     m = PyModule_Create(&module_def);
+     if (m == NULL)
+diff --git a/Modules/readline.c b/Modules/readline.c
+index 7a612deae4..8b2f47eec1 100644
+--- a/Modules/readline.c
++++ b/Modules/readline.c
+@@ -1548,6 +1548,12 @@ static struct PyModuleDef readlinemodule = {
+ PyMODINIT_FUNC
+ PyInit_readline(void)
+ {
++    #ifdef _PyHack_check_version_on_modinit
++        if (_PyHack_CheckInternalAPIVersion("readline") < 0) {
++            return NULL;
++        }
++    #endif
++
+     const char *backend = "readline";
+     PyObject *m;
+     readlinestate *mod_state;
+diff --git a/Objects/moduleobject.c b/Objects/moduleobject.c
+index d787f29004..31175ceb3f 100644
+--- a/Objects/moduleobject.c
++++ b/Objects/moduleobject.c
+@@ -43,6 +43,7 @@ _PyModule_IsExtension(PyObject *obj)
+ }
+ 
+ 
++#undef PyModuleDef_Init
+ PyObject*
+ PyModuleDef_Init(PyModuleDef* def)
+ {

plan.fmf

@@ -43,6 +43,9 @@ discover:
     - name: marshalparser
       path: /marshalparser
       test: "VERSION=${pybasever} SAMPLE=10 ./test_marshalparser_compatibility.sh"
+    - name: required_symbols
+      path: /required-symbols
+      test: "VERSION=${pybasever} ./check.sh"
 
 prepare:
   - name: Install dependencies
@@ -62,8 +65,9 @@ prepare:
     - virtualenv  # for virtualenv tests
     - glibc-all-langpacks # for locale tests
     - marshalparser  # for testing compatibility (magic numbers) with marshalparser
+    - binutils  # for nm (symbol inspection)
     - rpm  # for debugging
-    - dnf  # for upgrade
+    - dnf  # for upgrade and downgrade
   - name: Update packages
     how: shell
     script: dnf upgrade -y

python3.13.spec

@@ -45,11 +45,11 @@ URL: https://www.python.org/
 
 #  WARNING  When rebasing to a new Python version,
 #           remember to update the python3-docs package as well
-%global general_version %{pybasever}.8
+%global general_version %{pybasever}.15
 #global prerel ...
 %global upstream_version %{general_version}%{?prerel}
 Version: %{general_version}%{?prerel:~%{prerel}}
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: Python-2.0.1
 
 
@@ -109,31 +109,30 @@ License: Python-2.0.1
 # This needs to be manually updated when we update Python.
 # Explore the sources tarball (you need the version before %%prep is executed):
 #  $ tar -tf Python-%%{upstream_version}.tar.xz | grep whl
-%global pip_version 25.2
+%global pip_version 26.2.1
 %global setuptools_version 79.0.1
 # All of those also include a list of indirect bundled libs:
 # pip
 #  $ %%{_rpmconfigdir}/pythonbundles.py <(unzip -p Lib/ensurepip/_bundled/pip-*.whl pip/_vendor/vendor.txt)
 %global pip_bundled_provides %{expand:
-Provides: bundled(python3dist(cachecontrol)) = 0.14.3
-Provides: bundled(python3dist(certifi)) = 2025.7.14
-Provides: bundled(python3dist(dependency-groups)) = 1.3.1
-Provides: bundled(python3dist(distlib)) = 0.4
+Provides: bundled(python3dist(cachecontrol)) = 0.14.4
+Provides: bundled(python3dist(certifi)) = 2026.6.17
+Provides: bundled(python3dist(distlib)) = 0.4.2
 Provides: bundled(python3dist(distro)) = 1.9
-Provides: bundled(python3dist(idna)) = 3.10
-Provides: bundled(python3dist(msgpack)) = 1.1.1
-Provides: bundled(python3dist(packaging)) = 25
-Provides: bundled(python3dist(platformdirs)) = 4.3.8
-Provides: bundled(python3dist(pygments)) = 2.19.2
+Provides: bundled(python3dist(idna)) = 3.18
+Provides: bundled(python3dist(msgpack)) = 1.1.2
+Provides: bundled(python3dist(packaging)) = 26.2
+Provides: bundled(python3dist(platformdirs)) = 4.10
+Provides: bundled(python3dist(pygments)) = 2.20
 Provides: bundled(python3dist(pyproject-hooks)) = 1.2
-Provides: bundled(python3dist(requests)) = 2.32.4
-Provides: bundled(python3dist(resolvelib)) = 1.2
-Provides: bundled(python3dist(rich)) = 14.1
+Provides: bundled(python3dist(requests)) = 2.34.2
+Provides: bundled(python3dist(resolvelib)) = 1.2.1
+Provides: bundled(python3dist(rich)) = 14.2
 Provides: bundled(python3dist(setuptools)) = 70.3
-Provides: bundled(python3dist(tomli)) = 2.2.1
+Provides: bundled(python3dist(tomli)) = 2.4.1
 Provides: bundled(python3dist(tomli-w)) = 1.2
-Provides: bundled(python3dist(truststore)) = 0.10.1
-Provides: bundled(python3dist(urllib3)) = 1.26.20
+Provides: bundled(python3dist(truststore)) = 0.10.4
+Provides: bundled(python3dist(urllib3)) = 2.7
 }
 # setuptools
 # vendor.txt not in .whl
@@ -255,7 +254,7 @@ Obsoletes: python%{pybasever}%{?1:-%{1}}\
 BuildRequires: autoconf
 BuildRequires: bluez-libs-devel
 BuildRequires: bzip2-devel
-BuildRequires: expat-devel
+BuildRequires: expat-devel >= 2.5.0-2
 BuildRequires: findutils
 BuildRequires: gcc
 BuildRequires: gdbm-devel
@@ -268,7 +267,6 @@ BuildRequires: libuuid-devel
 BuildRequires: make
 BuildRequires: mpdecimal-devel
 BuildRequires: ncurses-devel
-BuildRequires: openssl-devel
 BuildRequires: pkgconfig
 BuildRequires: python-rpm-macros
 BuildRequires: readline-devel
@@ -281,6 +279,10 @@ BuildRequires: xz-devel
 BuildRequires: zlib-devel
 BuildRequires: /usr/bin/dtrace
 
+# Support for OpenSSL 4 only landed in Python 3.15 for now
+# https://github.com/python/cpython/issues/146207
+BuildRequires: (openssl-devel < 1:4 or openssl3-devel)
+
 %if %{undefined rhel}
 BuildRequires: libb2-devel
 %endif
@@ -368,35 +370,45 @@ Source11: idle3.appdata.xml
 # pypa/distutils integration: https://github.com/pypa/distutils/pull/70
 Patch251: 00251-change-user-install-location.patch
 
-# 00461 # 920175020b21c0aff5edcc4c28d688b5061f591c
-# Downstream only: Install wheel in test venvs when setuptools < 71
-Patch461: 00461-downstream-only-install-wheel-in-test-venvs-when-setuptools-71.patch
+# 00466 # 713a1368544eddd55088d67f88a23ce31722a4cb
+# Downstream only: Lower XML_COMBINED_VERSION threshold for reparse deferral
+#
+# RHEL 9 expat 2.5.0 has XML_SetReparseDeferralEnabled backported
+# via the CVE-2023-52425 fix, but XML_COMBINED_VERSION remains 20500.
+# CPython's #if XML_COMBINED_VERSION >= 20600 guards compile the setter
+# as a no-op, so SetReparseDeferralEnabled silently does nothing and
+# GetReparseDeferralEnabled always returns False, even though the expat
+# library actually supports (and enables) reparse deferral.
+#
+# Lower the threshold from 20600 to 20500 so that CPython uses the
+# backported function. This makes the Python API actually work on RHEL 9
+# and fixes test failures (test_reparse_deferral_disabled,
+# test_flush_reparse_deferral_disabled, test_simple_xml_chunk_*).
+#
+# The spec file BuildRequires expat-devel >= 2.5.0-2 to ensure the
+# backported function is available.
+Patch466: 00466-downstream-only-lower-xml_combined_version-threshold-for-reparse-deferral.patch
 
-# 00464 # 292acffec7a379cb6d1f3c47b9e5a2f170bbadb6
-# Enable PAC and BTI protections for aarch64
+# 00475 # d44fac01037662db286449a78c8fb819788f764c
+# CVE-2025-15367
 #
-# Apply protection against ROP/JOP attacks for aarch64 on asm_trampoline.S
-#
-# The BTI flag must be applied in the assembler sources for this class
-# of attacks to be mitigated on newer aarch64 processors.
-#
-# Upstream PR: https://github.com/python/cpython/pull/130864/files
-#
-# The upstream patch is incomplete but only for the case where
-# frame pointers are not used on 3.13+.
-#
-# Since on Fedora we always compile with frame pointers the BTI/PAC
-# hardware protections can be enabled without losing Perf unwinding.
-Patch464: 00464-enable-pac-and-bti-protections-for-aarch64.patch
+# Reject control characters in POP3 commands
+Patch475: 00475-cve-2025-15367.patch
 
-# 00466 # e10760fb955ee33d2917f8a57bb4e24d71e5341c
-# Downstream only: Skip tests not working with older expat version
+# 00477 # 9c62c492e7f2e3b152dbf287c08d307c3f013221
+# Raise an error when importing stdlib modules compiled for a different Python version
 #
-# We want to run these tests in Fedora and EPEL 10, but not in EPEL 9,
-# which has too old version of expat. We set the upper bound version
-# in the conditionalized skip to a release available in CentOS Stream 10,
-# which is tested as working.
-Patch466: 00466-downstream-only-skip-tests-not-working-with-older-expat-version.patch
+# This is a downstream workaround "implementing" python#137212 -
+# the mechanism for the check exists in Python 3.15+, where it needs to be
+# added to the standard library modules.
+# In Fedora, we need it also in previous Python versions, as we experience
+# segmentation fault when importing stdlib modules after update while
+# Python is running.
+#
+# _curses, _tkinter, _tracemalloc and readline are not calling PyModuleDef_Init,
+# which is modified with this patch, hence they need a
+# direct call to the check function.
+Patch477: 00477-raise-an-error-when-importing-stdlib-modules-compiled-for-a-different-python-version.patch
 
 # (New patches go here ^^^)
 #
@@ -522,14 +534,13 @@ Summary:        Python runtime libraries
 # Combined manually from https://docs.python.org/3.13/license.html
 # Hash of Doc/license.rst which is compared in %%prep, generated with:
 # $ sha256sum Doc/license.rst | cut -f1 -d" "
-%global license_file_hash 62f2c9c2c75d511170eb464ad5f83b78cc1f37eb2eb49c2846c9aa6c4557ee99
+%global license_file_hash 952ac05720d7f1dcb63589b35eb0931b1442eb250230a4ad31198eddf0ad6abc
 # Licenses of incorporated software:
 # Mersenne Twister in _random C extension contains code under BSD-3-Clause
 # socket.getaddrinfo() and socket.getnameinfo() are BSD-3-Clause
 # test.support.asynchat and test.support.asyncore are MIT-CMU
 # http.cookies is MIT-CMU
-# trace is under temporary SPDX ref: https://gitlab.com/fedora/legal/fedora-license-data/-/issues/657
-# trace: LicenseRef-Fedora-Temporary-Python-trace
+# trace is HPND-SMC
 # uu is MIT-CMU
 # xmlrpc.client is MIT-CMU
 # test.test_epoll is MIT
@@ -546,10 +557,11 @@ Summary:        Python runtime libraries
 # mimalloc is MIT
 # parts of asyncio from uvloop are MIT
 # Python/qsbr.c is adapted from code under BSD-2-Clause
+# An extract of the `Unicode Character Database` converted to an internal format is Unicode-3.0
 # Bundled libb2 is not declared in the upstream document, but it's:
 # CC0-1.0, covered by grandfathering exception
 # We don't query upstream for changes, as 3.13 is the last Python version containing it.
-%global libs_license Python-2.0.1 AND CC0-1.0 AND MIT AND BSD-3-Clause AND MIT-CMU AND LicenseRef-Fedora-Temporary-Python-trace AND BSD-2-Clause AND dtoa
+%global libs_license Python-2.0.1 AND CC0-1.0 AND MIT AND BSD-3-Clause AND MIT-CMU AND HPND-SMC AND BSD-2-Clause AND dtoa AND Unicode-3.0
 %if %{with rpmwheels}
 Requires: %{python_wheel_pkg_prefix}-pip-wheel >= 23.1.2
 License: %{libs_license}
@@ -585,6 +597,28 @@ Recommends: (%{pkgname}-tkinter%{?_isa} = %{version}-%{release} if tk%{?_isa})
 # The zoneinfo module needs tzdata
 Requires: tzdata
 
+# The requirement on libexpat is generated, but we need to version it.
+# When built with a specific expat version, but installed with an older one,
+# we sometimes get:
+#   ImportError: /usr/lib64/python3.X/lib-dynload/pyexpat.cpython-....so:
+#   undefined symbol: XML_...
+# The pyexpat module has build-time checks for expat version to only use the
+# available symbols. However, there is no runtime protection, so when the module
+# is later installed with an older expat, it may error due to undefined symbols.
+# This breaks many things, including python -m venv.
+# We avoid this problem by requiring at least the same version of expat that
+# was used during the build time.
+# We also include release, in case pyxpat uses ABI that was backported
+# (e.g. XML_SetReparseDeferralEnabled was added in c9s expat 2.5.0-2).
+# Other subpackages (like -debug) also need this, but they all depend on -libs.
+# Since expat 2.7.4, the library has versioned symbols and this is no longer needed,
+# as the generated requirement will be in the form of libexpat.so.1(LIBEXPAT_2.7.2) etc.
+%global expat_version %(LANG=C rpm -q --qf '%%{version}-%%{release}' expat.%{_target_cpu} | sed 's/.*not installed/0/')
+%if v"%{expat_version}" < v"2.7.4"
+Requires: expat%{?_isa} >= %{expat_version}
+%endif
+
+
 %description -n %{pkgname}-libs
 This package contains runtime libraries for use by Python:
 - the majority of the Python standard library
@@ -761,6 +795,9 @@ License: %{libs_license} AND Apache-2.0 AND ISC AND LGPL-2.1-only AND MPL-2.0 AN
 Provides: bundled(libb2) = 0.98.1
 Provides: bundled(mimalloc) = 2.12
 Requires: tzdata
+%if v"%{expat_version}" < v"2.7.4"
+Requires: expat%{?_isa} >= %{expat_version}
+%endif
 
 %description -n python%{pybasever}-freethreading
 The provisional Free Threading (PEP 703) build of Python.
@@ -1264,6 +1301,11 @@ for file in %{buildroot}%{pylibdir}/pydoc_data/topics.py $(grep --include='*.py'
     rm ${directory}/{__pycache__/${module}.cpython-%{pyshortver}.opt-?.pyc,${module}.py}
 done
 
+%if %{without rpmwheels}
+# Inject SBOM into the installed wheels (if the macro is available)
+%{?python_wheel_inject_sbom:%python_wheel_inject_sbom %{buildroot}%{pylibdir}/ensurepip/_bundled/*.whl}
+%endif
+
 # ======================================================
 # Checks for packaging issues
 # ======================================================
@@ -1776,6 +1818,42 @@ CheckPython freethreading
 # ======================================================
 
 %changelog
+* Wed Aug 12 2026 Miro Hrončok <mhroncok@redhat.com> - 3.13.15-2
+- On EPEL 9, also supports reparse deferral in expat
+
+* Mon Aug 10 2026 Karolina Surma <ksurma@redhat.com> - 3.13.15-1
+- Update to Python 3.13.15
+
+* Thu Jul 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 3.13.14-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
+
+* Thu Jun 11 2026 Karolina Surma <ksurma@redhat.com> - 3.13.14-1
+- Update to Python 3.13.14
+
+* Wed Apr 08 2026 Tomáš Hrnčiar <thrnciar@redhat.com> - 3.13.13-1
+- Update to 3.13.13
+
+* Thu Mar 26 2026 Lumír Balhar <lbalhar@redhat.com> - 3.13.12-2
+- Security fix for CVE-2026-4519 (rhbz#2449729)
+
+* Wed Feb 04 2026 Tomáš Hrnčiar <thrnciar@redhat.com> - 3.13.12-1
+- Update to 3.13.12
+
+* Sat Jan 17 2026 Fedora Release Engineering <releng@fedoraproject.org> - 3.13.11-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
+
+* Tue Jan 06 2026 Karolina Surma <ksurma@redhat.com> - 3.13.11-2
+- Require at least the same expat version as used during the build time
+
+* Fri Dec 05 2025 Miro Hrončok <mhroncok@redhat.com> - 3.13.11-1
+- Update to 3.13.11
+
+* Wed Dec 03 2025 Tomáš Hrnčiar <thrnciar@redhat.com> - 3.13.10-1
+- Update to 3.13.10
+
+* Tue Oct 14 2025 Miro Hrončok <mhroncok@redhat.com> - 3.13.9-1
+- Update to Python 3.13.9
+
 * Tue Oct 07 2025 Karolina Surma <ksurma@redhat.com> - 3.13.8-1
 - Update to Python 3.13.8
 

sources

@@ -1,2 +1,2 @@
-SHA512 (Python-3.13.8.tar.xz) = 8569959f24083824f6644b839c6ebd587e67fb74b3c5fed9ef44bfbbba46076e98db33a27218b2d44edd15b3b05ae85e94b71491598cbb871d7d43a9d6fa2b84
-SHA512 (Python-3.13.8.tar.xz.asc) = ea5bae3f5a909d16526b614085cd4543153800348dd82ef90945ceed19acbab8db76f7c1279e39d26b9e69608aa0f7cf1eab9a562d00fd1c9badd5b0fafc5c21
+SHA512 (Python-3.13.15.tar.xz) = b0ab766a3de0b4cfdbf0b93300d7330c734d3f7057577bb03e95e39da4cdade81993e769c7fa6dfdcc13b9d43a3b399d9cd89b5477b413662e9e691c1b7886b8
+SHA512 (Python-3.13.15.tar.xz.asc) = 662c00be95f62e80db43cf42099fef91f764ff7a4433cadf7eb19dedb5e4775adb12878d5ed2295fcea187731de186163ad9672ab72cde62a2335ca58ec1ad86