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[1] https://github.com/gitpython-developers/GitPython/commit/3af0c2516c5e18c829da30338614688f6b69b49c [2] https://security-tracker.debian.org/tracker/CVE-2026-73620 Signed-off-by: Yogita Urade --- Changes in v2: - Changed the advisory reference from NVD to Debian Security Tracker. Refreshed the embedded hunk context and index hashes. --- .../python/python3-git/CVE-2026-73620.patch | 130 ++++++++++++++++++ .../python/python3-git_3.1.43.bb | 1 + 2 files changed, 131 insertions(+) create mode 100644 meta/recipes-devtools/python/python3-git/CVE-2026-73620.patch diff --git a/meta/recipes-devtools/python/python3-git/CVE-2026-73620.patch b/meta/recipes-devtools/python/python3-git/CVE-2026-73620.patch new file mode 100644 index 0000000000..7901c8d28d --- /dev/null +++ b/meta/recipes-devtools/python/python3-git/CVE-2026-73620.patch @@ -0,0 +1,130 @@ +From cc80ea13457773907fa7843e274dca8dc7d196a5 Mon Sep 17 00:00:00 2001 +From: "GPT 5.6" +Date: Sun, 26 Jul 2026 05:54:27 +0200 +Subject: [PATCH] Block unsafe checkout-index and tag file options + +GHSA-3f7w-8rr8-f37f reports that caller-controlled options forwarded by +IndexFile.checkout() and TagReference.create() can make Git write to or read +from arbitrary filesystem paths. + +Add regression coverage proving the unsafe options are rejected by default while +preserving the explicit allow_unsafe_options escape hatch. Reuse GitPython's +existing option candidate normalization and unsafe-option guard at both public +API boundaries. + +Git baseline: a23bace963d508bd96983cc637131392d3face18. +Documentation/git-checkout-index.adoc defines --prefix as prepending an output +path, and Documentation/git-tag.adoc defines -F/--file as reading a tag message +from a file. + +CVE: CVE-2026-73620 +Upstream-Status: Backport [https://github.com/gitpython-developers/GitPython/commit/3af0c2516c5e18c829da30338614688f6b69b49c] + +Backport Changes: +- Omitted test/test_index.py, test/test_refs.py because the current PyPI + source archive does not include the test suite and the python3-git + recipe does not run it. + +Co-authored-by: Sebastian Thiel +(cherry picked from commit 3af0c2516c5e18c829da30338614688f6b69b49c) +Signed-off-by: Yogita Urade +--- + git/index/base.py | 12 ++++++++++++ + git/refs/tag.py | 13 +++++++++++++ + 2 files changed, 25 insertions(+) + +diff --git a/git/index/base.py b/git/index/base.py +index dfe7e0dc..90d4c16f 100644 +--- a/git/index/base.py ++++ b/git/index/base.py +@@ -129,6 +129,8 @@ IndexFile + Make sure you use :meth:`index.write() ` once you are done manipulating the + index directly before operating on it using the git command. + """ ++ unsafe_git_checkout_index_options = ["--prefix"] ++ + + __slots__ = ("repo", "version", "entries", "_extension_data", "_file_path") + +@@ -1199,6 +1201,7 @@ IndexFile.checkout + paths: Union[None, Iterable[PathLike]] = None, + force: bool = False, + fprogress: Callable = lambda *args: None, ++ allow_unsafe_options: bool = False, + **kwargs: Any, + ) -> Union[None, Iterator[PathLike], Sequence[PathLike]]: + """Check out the given paths or all files from the version known to the index +@@ -1224,6 +1227,9 @@ IndexFile.checkout + The provided progress information will contain ``None`` as path and item if + no explicit paths are given. Otherwise progress information will be send + prior and after a file has been checked out. ++ :param allow_unsafe_options: ++ Allow unsafe options, such as ``--prefix``. ++ + + :param kwargs: + Additional arguments to be passed to :manpage:`git-checkout-index(1)`. +@@ -1248,6 +1254,12 @@ IndexFile.checkout + i.e. if you want :manpage:`git-checkout(1)`-like behaviour, use + ``head.checkout`` instead of ``index.checkout``. + """ ++ if not allow_unsafe_options: ++ Git.check_unsafe_options( ++ options=Git._option_candidates([], kwargs), ++ unsafe_options=self.unsafe_git_checkout_index_options, ++ ) ++ + args = ["--index"] + if force: + args.append("--force") +diff --git a/git/refs/tag.py b/git/refs/tag.py +index 1e38663a..487eaa14 100644 +--- a/git/refs/tag.py ++++ b/git/refs/tag.py +@@ -14,6 +14,7 @@ module imports + + # typing ------------------------------------------------------------------ + ++from git.cmd import Git + from typing import Any, TYPE_CHECKING, Type, Union + + from git.types import AnyGitObject, PathLike +@@ -40,6 +41,8 @@ TagReference + print(tagref.tag.message) + """ + ++ unsafe_git_tag_options = ["--file", "-F"] ++ + __slots__ = () + + _common_default = "tags" +@@ -92,6 +95,7 @@ TagReference.create + reference: Union[str, "SymbolicReference"] = "HEAD", + logmsg: Union[str, None] = None, + force: bool = False, ++ allow_unsafe_options: bool = False, + **kwargs: Any, + ) -> "TagReference": + """Create a new tag reference. +@@ -121,12 +125,21 @@ TagReference.create + :param force: + If ``True``, force creation of a tag even though that tag already exists. + ++ :param allow_unsafe_options: ++ Allow unsafe options, such as ``--file``. ++ + :param kwargs: + Additional keyword arguments to be passed to :manpage:`git-tag(1)`. + + :return: + A new :class:`TagReference`. + """ ++ if not allow_unsafe_options: ++ Git.check_unsafe_options( ++ options=Git._option_candidates([], kwargs), ++ unsafe_options=cls.unsafe_git_tag_options, ++ ) ++ + if "ref" in kwargs and kwargs["ref"]: + reference = kwargs["ref"] + diff --git a/meta/recipes-devtools/python/python3-git_3.1.43.bb b/meta/recipes-devtools/python/python3-git_3.1.43.bb index f712a0e699..d47ce73d72 100644 --- a/meta/recipes-devtools/python/python3-git_3.1.43.bb +++ b/meta/recipes-devtools/python/python3-git_3.1.43.bb @@ -33,6 +33,7 @@ SRC_URI += "file://CVE-2026-42284.patch \ file://CVE-2026-73624.patch \ file://CVE-2026-73622.patch \ file://CVE-2026-73621.patch \ + file://CVE-2026-73620.patch \ " SRC_URI[sha256sum] = "35f314a9f878467f5453cc1fee295c3e18e52f1b99f10f6cf5b1682e968a9e7c"