new file mode 100644
@@ -0,0 +1,94 @@
+From e9a64de6632678594079cf3e020cbaff44b31615 Mon Sep 17 00:00:00 2001
+From: Byron <sebastian.thiel@icloud.com>
+Date: Tue, 4 Aug 2026 02:48:01 +0000
+Subject: [PATCH] Guard unsafe git init options
+
+<!-- agent -->
+GHSA-9rj7-rf2p-w77r reports that Repo.init forwarded git-init
+options without applying GitPython's unsafe-option policy. A regression
+showed template and abbreviated option spellings reached Git without an
+UnsafeOptionError and could create the destination before validation.
+
+Add a git-init denylist for template installation and separate Git
+directory redirection, check keyword options before any path or directory
+mutation, and provide the standard explicit allow_unsafe_options escape
+hatch. This preserves trusted uses while rejecting untrusted forwarding by
+default.
+
+An audit against Git cf5497b14c5a24f10c13f7e0ee85cb95af13ea6a
+(v2.55.0.windows.3-16-gcf5497b14c) confirmed that init and clone are the
+built-in commands that consume repository template directories. Clone,
+clone_from, and submodule cloning already share the guarded clone helper;
+the similarly named commit option only reads a commit-message template.
+
+Validated with the focused init regression, the clone/init unsafe-option
+suite, 185 config/Git/index/clone tests, Ruff, and basedpyright.
+
+CVE: CVE-2026-76218
+Upstream-Status: Backport [https://github.com/gitpython-developers/GitPython/commit/d9ddb55bdc66ffe8c9932fe460e6b8c8211e47c7]
+
+Backport Changes:
+- Omitted test/test_repo.py because the current PyPI source archive
+ does not include the test suite and the python3-git recipe does
+ not run it.
+
+Assisted-by: GPT 5.6
+Co-authored-by: GPT 5.6 <codex@openai.com>
+(cherry picked from commit d9ddb55bdc66ffe8c9932fe460e6b8c8211e47c7)
+Signed-off-by: Yogita Urade <yurade@cisco.com>
+(cherry picked from commit 2d00b71e80c6faa95a5a93be712bb0b16d701e97)
+Signed-off-by: Yogita Urade <yurade@cisco.com>
+---
+ git/repo/base.py | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+diff --git a/git/repo/base.py b/git/repo/base.py
+index 4b783586..fd6d660d 100644
+--- a/git/repo/base.py
++++ b/git/repo/base.py
+@@ -141,6 +141,14 @@ class Repo:
+ re_author_committer_start = re.compile(r"^(author|committer)")
+ re_tab_full_line = re.compile(r"^\t(.*)$")
+
++ unsafe_git_init_options = [
++ # Can install hooks that execute during later Git commands:
++ "--template",
++ # Redirects the repository metadata to a caller-controlled path:
++ "--separate-git-dir",
++ ]
++ """Options to :manpage:`git-init(1)` that permit unsafe code execution or I/O."""
++
+ unsafe_git_clone_options = [
+ # Executes arbitrary commands:
+ "--upload-pack",
+@@ -1345,6 +1353,7 @@ class Repo:
+ mkdir: bool = True,
+ odbt: Type[GitCmdObjectDB] = GitCmdObjectDB,
+ expand_vars: bool = True,
++ allow_unsafe_options: bool = False,
+ **kwargs: Any,
+ ) -> "Repo":
+ """Initialize a git repository at the given path if specified.
+@@ -1369,6 +1378,10 @@ class Repo:
+ information disclosure, allowing attackers to access the contents of
+ environment variables.
+
++ :param allow_unsafe_options:
++ Allow unsafe options to be used, such as ``--template`` and
++ ``--separate-git-dir``.
++
+ :param kwargs:
+ Keyword arguments serving as additional options to the
+ :manpage:`git-init(1)` command.
+@@ -1376,6 +1389,11 @@ class Repo:
+ :return:
+ :class:`Repo` (the newly created repo)
+ """
++ if not allow_unsafe_options:
++ Git.check_unsafe_options(
++ options=Git._option_candidates([], kwargs),
++ unsafe_options=cls.unsafe_git_init_options,
++ )
+ if path:
+ path = expand_path(path, expand_vars)
+ if mkdir and path and not osp.exists(path):
@@ -38,6 +38,7 @@ SRC_URI += "file://CVE-2026-42284.patch \
file://CVE-2026-76221.patch \
file://CVE-2026-76220.patch \
file://CVE-2026-76219.patch \
+ file://CVE-2026-76218.patch \
"
SRC_URI[sha256sum] = "35f314a9f878467f5453cc1fee295c3e18e52f1b99f10f6cf5b1682e968a9e7c"
This patch applies the upstream fix as referenced in [2], using the commit shown in [1]. [1] https://github.com/gitpython-developers/GitPython/commit/d9ddb55bdc66ffe8c9932fe460e6b8c8211e47c7 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-76218 Signed-off-by: Yogita Urade <yurade@cisco.com> --- .../python/python3-git/CVE-2026-76218.patch | 94 +++++++++++++++++++ .../python/python3-git_3.1.43.bb | 1 + 2 files changed, 95 insertions(+) create mode 100644 meta/recipes-devtools/python/python3-git/CVE-2026-76218.patch