Security fix for CVE-2026-24049

(cherry picked from Fedora commit a01db9d3920d0d685a592084bf27253ad867a391)

CVE-2026-24049.patch

@@ -0,0 +1,85 @@
+From 24ab89cdacfa68857b4c7b5fb5234a75193dc941 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Alex=20Gr=C3=B6nholm?= <alex.gronholm@nextday.fi>
+Date: Thu, 22 Jan 2026 01:41:14 +0200
+Subject: [PATCH] Fixed security issue around wheel unpack (#675)
+
+A maliciously crafted wheel could cause the permissions of a file outside the unpack tree to be altered.
+
+Fixes CVE-2026-24049.
+
+(cherry picked from commit 7a7d2de96b22a9adf9208afcc9547e1001569fef)
+---
+ docs/news.rst            |  5 +++++
+ src/wheel/cli/unpack.py  |  4 ++--
+ tests/cli/test_unpack.py | 23 +++++++++++++++++++++++
+ 3 files changed, 30 insertions(+), 2 deletions(-)
+
+diff --git a/docs/news.rst b/docs/news.rst
+index 9e5488a..1033520 100644
+--- a/docs/news.rst
++++ b/docs/news.rst
+@@ -1,6 +1,11 @@
+ Release Notes
+ =============
+ 
++**BACKPORTS**
++
++- Fixed ``wheel unpack`` potentially altering the permissions of files outside of the
++  destination tree with maliciously crafted wheels (CVE-2026-24049)
++
+ **0.41.2 (2023-08-22)**
+ 
+ - Fixed platform tag detection for GraalPy and 32-bit python running on an aarch64
+diff --git a/src/wheel/cli/unpack.py b/src/wheel/cli/unpack.py
+index d48840e..83dc742 100644
+--- a/src/wheel/cli/unpack.py
++++ b/src/wheel/cli/unpack.py
+@@ -19,12 +19,12 @@ def unpack(path: str, dest: str = ".") -> None:
+         destination = Path(dest) / namever
+         print(f"Unpacking to: {destination}...", end="", flush=True)
+         for zinfo in wf.filelist:
+-            wf.extract(zinfo, destination)
++            target_path = Path(wf.extract(zinfo, destination))
+ 
+             # Set permissions to the same values as they were set in the archive
+             # We have to do this manually due to
+             # https://github.com/python/cpython/issues/59999
+             permissions = zinfo.external_attr >> 16 & 0o777
+-            destination.joinpath(zinfo.filename).chmod(permissions)
++            target_path.chmod(permissions)
+ 
+     print("OK")
+diff --git a/tests/cli/test_unpack.py b/tests/cli/test_unpack.py
+index ae584af..951ba29 100644
+--- a/tests/cli/test_unpack.py
++++ b/tests/cli/test_unpack.py
+@@ -34,3 +34,26 @@ def test_unpack_executable_bit(tmp_path):
+     unpack(str(wheel_path), str(tmp_path))
+     assert not script_path.is_dir()
+     assert stat.S_IMODE(script_path.stat().st_mode) == 0o755
++
++
++@pytest.mark.skipif(
++    platform.system() == "Windows", reason="Windows does not support chmod()"
++)
++def test_chmod_outside_unpack_tree(tmp_path_factory: TempPathFactory) -> None:
++    wheel_path = tmp_path_factory.mktemp("build") / "test-1.0-py3-none-any.whl"
++    with WheelFile(wheel_path, "w") as wf:
++        wf.writestr(
++            "test-1.0.dist-info/METADATA",
++            "Metadata-Version: 2.4\nName: test\nVersion: 1.0\n",
++        )
++        wf.writestr("../../system-file", b"malicious data")
++
++    extract_root_path = tmp_path_factory.mktemp("extract")
++    system_file = extract_root_path / "system-file"
++    extract_path = extract_root_path / "subdir"
++    system_file.write_bytes(b"important data")
++    system_file.chmod(0o755)
++    unpack(str(wheel_path), str(extract_path))
++
++    assert system_file.read_bytes() == b"important data"
++    assert stat.S_IMODE(system_file.stat().st_mode) == 0o755
+-- 
+2.52.0
+

python3.12-wheel.spec

@@ -25,7 +25,7 @@
 
 Name:           python%{python3_pkgversion}-%{pypi_name}
 Version:        0.41.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Built-package format for Python
 
 # packaging is ASL 2.0 or BSD
@@ -35,6 +35,9 @@ Source0:        %{url}/archive/%{version}/%{pypi_name}-%{version}.tar.gz
 # This is used in bootstrap mode where we manually install the wheel and
 # entrypoints
 Source1:        wheel-entrypoint
+# Security fix for CVE-2026-24049: Privilege Escalation or Arbitrary Code Execution via malicious wheel file unpacking
+# https://github.com/pypa/wheel/commit/7a7d2d (from 0.46.2+)
+Patch1:         CVE-2026-24049.patch
 BuildArch:      noarch
 
 BuildRequires:  python%{python3_pkgversion}-devel
@@ -172,6 +175,10 @@ fi
 %{python_wheel_dir}/%{python_wheel_name}
 
 %changelog
+* Mon Jan 26 2026 Miro Hrončok <mhroncok@redhat.com> - 0.41.2-4
+- Security fix for CVE-2026-24049
+  Resolves: RHEL-143636
+
 * Tue Jan 23 2024 Miro Hrončok <mhroncok@redhat.com> - 0.41.2-3
 - Rebuilt for timestamp .pyc invalidation mode