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No commits in common. "c8s" and "c8-beta" have entirely different histories.
20
.gitignore
vendored
20
.gitignore
vendored
@ -1,19 +1 @@
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/wheel-0.22.0.tar.gz
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/wheel-0.24.0.tar.gz
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/wheel-0.26.0.tar.gz
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/wheel-0.29.0.tar.gz
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/wheel-0.30.0a0.tar.gz
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/wheel-0.30.0.tar.gz
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/wheel-0.31.1.tar.gz
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/wheel-0.32.0.tar.gz
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/wheel-0.33.1.tar.gz
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/wheel-0.33.6.tar.gz
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/wheel-0.34.2.tar.gz
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/wheel-0.35.1.tar.gz
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/wheel-0.36.2.tar.gz
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/wheel-0.37.0.tar.gz
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/wheel-0.37.1.tar.gz
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/wheel-0.38.4.tar.gz
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/wheel-0.40.0.tar.gz
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/wheel-0.41.1.tar.gz
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/wheel-0.41.2.tar.gz
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SOURCES/wheel-0.41.2.tar.gz
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1
.python3.12-wheel.metadata
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1
.python3.12-wheel.metadata
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@ -0,0 +1 @@
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9bc971ceed44fab6bf172284714aba449eb15267 SOURCES/wheel-0.41.2.tar.gz
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@ -1,85 +0,0 @@
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From 24ab89cdacfa68857b4c7b5fb5234a75193dc941 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Alex=20Gr=C3=B6nholm?= <alex.gronholm@nextday.fi>
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Date: Thu, 22 Jan 2026 01:41:14 +0200
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Subject: [PATCH] Fixed security issue around wheel unpack (#675)
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A maliciously crafted wheel could cause the permissions of a file outside the unpack tree to be altered.
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Fixes CVE-2026-24049.
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(cherry picked from commit 7a7d2de96b22a9adf9208afcc9547e1001569fef)
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---
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docs/news.rst | 5 +++++
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src/wheel/cli/unpack.py | 4 ++--
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tests/cli/test_unpack.py | 23 +++++++++++++++++++++++
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3 files changed, 30 insertions(+), 2 deletions(-)
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diff --git a/docs/news.rst b/docs/news.rst
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index 9e5488a..1033520 100644
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--- a/docs/news.rst
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+++ b/docs/news.rst
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@@ -1,6 +1,11 @@
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Release Notes
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=============
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+**BACKPORTS**
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+
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+- Fixed ``wheel unpack`` potentially altering the permissions of files outside of the
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+ destination tree with maliciously crafted wheels (CVE-2026-24049)
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+
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**0.41.2 (2023-08-22)**
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- Fixed platform tag detection for GraalPy and 32-bit python running on an aarch64
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diff --git a/src/wheel/cli/unpack.py b/src/wheel/cli/unpack.py
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index d48840e..83dc742 100644
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--- a/src/wheel/cli/unpack.py
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+++ b/src/wheel/cli/unpack.py
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@@ -19,12 +19,12 @@ def unpack(path: str, dest: str = ".") -> None:
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destination = Path(dest) / namever
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print(f"Unpacking to: {destination}...", end="", flush=True)
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for zinfo in wf.filelist:
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- wf.extract(zinfo, destination)
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+ target_path = Path(wf.extract(zinfo, destination))
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# Set permissions to the same values as they were set in the archive
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# We have to do this manually due to
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# https://github.com/python/cpython/issues/59999
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permissions = zinfo.external_attr >> 16 & 0o777
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- destination.joinpath(zinfo.filename).chmod(permissions)
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+ target_path.chmod(permissions)
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print("OK")
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diff --git a/tests/cli/test_unpack.py b/tests/cli/test_unpack.py
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index ae584af..951ba29 100644
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--- a/tests/cli/test_unpack.py
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+++ b/tests/cli/test_unpack.py
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@@ -34,3 +34,26 @@ def test_unpack_executable_bit(tmp_path):
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unpack(str(wheel_path), str(tmp_path))
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assert not script_path.is_dir()
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assert stat.S_IMODE(script_path.stat().st_mode) == 0o755
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+
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+
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+@pytest.mark.skipif(
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+ platform.system() == "Windows", reason="Windows does not support chmod()"
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+)
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+def test_chmod_outside_unpack_tree(tmp_path_factory: TempPathFactory) -> None:
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+ wheel_path = tmp_path_factory.mktemp("build") / "test-1.0-py3-none-any.whl"
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+ with WheelFile(wheel_path, "w") as wf:
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+ wf.writestr(
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+ "test-1.0.dist-info/METADATA",
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+ "Metadata-Version: 2.4\nName: test\nVersion: 1.0\n",
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+ )
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+ wf.writestr("../../system-file", b"malicious data")
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+
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+ extract_root_path = tmp_path_factory.mktemp("extract")
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+ system_file = extract_root_path / "system-file"
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+ extract_path = extract_root_path / "subdir"
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+ system_file.write_bytes(b"important data")
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+ system_file.chmod(0o755)
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+ unpack(str(wheel_path), str(extract_path))
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+
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+ assert system_file.read_bytes() == b"important data"
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+ assert stat.S_IMODE(system_file.stat().st_mode) == 0o755
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--
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2.52.0
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@ -25,7 +25,7 @@
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Name: python%{python3_pkgversion}-%{pypi_name}
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Version: 0.41.2
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Release: 4%{?dist}
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Release: 3%{?dist}
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Summary: Built-package format for Python
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# packaging is ASL 2.0 or BSD
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@ -35,9 +35,6 @@ Source0: %{url}/archive/%{version}/%{pypi_name}-%{version}.tar.gz
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# This is used in bootstrap mode where we manually install the wheel and
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# entrypoints
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Source1: wheel-entrypoint
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# Security fix for CVE-2026-24049: Privilege Escalation or Arbitrary Code Execution via malicious wheel file unpacking
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# https://github.com/pypa/wheel/commit/7a7d2d (from 0.46.2+)
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Patch1: CVE-2026-24049.patch
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BuildArch: noarch
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BuildRequires: python%{python3_pkgversion}-devel
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@ -175,10 +172,6 @@ fi
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%{python_wheel_dir}/%{python_wheel_name}
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%changelog
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* Mon Jan 26 2026 Miro Hrončok <mhroncok@redhat.com> - 0.41.2-4
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- Security fix for CVE-2026-24049
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Resolves: RHEL-143636
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* Tue Jan 23 2024 Miro Hrončok <mhroncok@redhat.com> - 0.41.2-3
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- Rebuilt for timestamp .pyc invalidation mode
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@ -1,7 +0,0 @@
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--- !Policy
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product_versions:
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- rhel-8
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decision_context: osci_compose_gate
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rules:
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- !PassingTestCaseRule {test_case_name: osci.brew-build.tier0.functional}
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1
sources
1
sources
@ -1 +0,0 @@
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SHA512 (wheel-0.41.2.tar.gz) = 1e4f03cd09cc79a7cae9096dcb7f12a4be16165d3e2e54181485f7fc4fd633ef5b69c5033558634e3e9a01302ff088e6b074425649285a162e56d6829da27b72
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@ -1,16 +0,0 @@
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---
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- hosts: localhost
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roles:
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- role: standard-test-basic
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tags:
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- classic
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tests:
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- smoke_version:
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dir: .
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run: wheel-3.12 version
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- smoke_import:
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dir: .
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run: python3.12 -c 'import wheel'
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required_packages:
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- python3.12
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- python3.12-wheel
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