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bdu:2026-10999

BREW-aider-CVE-2026-67323 — GitPython: command injection via unguarded Git options in `Repo.archive()`, `git.ls_remote()`, and arbitrary file overw…

Affected: Homebrew: aider

## Summary

GitPython already know that --upload-pack / --exec are command-exec vectors, they are denylist in git/remote.py:535 and check by Git.check_unsafe_options() (git/cmd.py:963), the thing is this check him he is only call from fetch, pull, push and clone_from, everything else who build a git argv from caller values just go through, no check, three examples

## Code analysis

Repo.archive (git/repo/base.py:1623) do self.git.archive("--", treeish, *path, **kwargs), the treeish is after the --, but the kwargs get dashify by transform_kwarg (git/cmd.py:1487) and they land before it, so {"remote": ".", "exec": "<cmd>"} give git archive --remote=. --exec=<cmd> -- <rev>, the --remote spawn the upload-archive helper and --exec choose which binary that is, done, default git config, no protocol.ext.allow needed, and archive already document caller kwargs (format, prefix, path) so pass a dict is normal usage

repo.git.ls_remote(url, upload_pack="<cmd>"), same builder, same result, it's exactly the kwarg gap that CVE-2026-42215 close for fetch/pull/push/clone_from, except the dynamic repo.git.<anything>(**user_dict) surface him he never got the fix

Repo.iter_commits / Repo.blame (git/objects/commit.py:348, git/repo/base.py:1199) put the rev before the --, no leading-dash check, a "branch name" like --output=/etc/whatever become git rev-list --output=... --, and git he open and truncate that file before he even validate the revision, the file is gone even if the command error ri…

EUVD-2026-352667

fkie_cve-2026-67323

GitPython before 3.1.51 fails to guard against dangerous Git options passed as keyword arguments in Repo.archive() and git.ls_remote(), allowing command injection via options such as --exec/--upload-pack (leading to arbitrary command execution). Additionally, Repo.iter_commits() and Repo.blame() do not check for leading-dash revision arguments, so a revision like --output=<path> can cause Git to open and truncate an arbitrary file. Exploitation requires an application that passes attacker-controlled arguments to these methods.

GHSA-956x-8gvw-wg5v — GitPython: command injection via unguarded Git options in `Repo.archive()`, `git.ls_remote()`, and arbitrary file overw…

Affected: PyPI: GitPython

## Summary

## Code analysis

OESA-2026-3249 — python-GitPython security update

Affected: openEuler:24.03-LTS-SP4: python-GitPython

GitPython is a python library used to interact with git repositories, high-level like git-porcelain, or low-level like git-plumbing. Security Fix(es):

GitPython before 3.1.52 is vulnerable to environment-variable exfiltration in Repo.clone_from(). The caller-supplied remote URL is passed through Git.polish_url(), which on non-Cygwin platforms calls os.path.expandvars() on the URL before invoking git clone. An attacker who controls the clone URL can embed $NAME or ${NAME} tokens that are expanded to the values of the hosting process's environment variables (e.g., AWS_SECRET_ACCESS_KEY or GITHUB_TOKEN). The resulting URL, now containing the secret, is transmitted over the network to an attacker-controlled host during the clone attempt, disclosing the secret.(CVE-2026-67322)

GitPython 3.1.50 fails to recognize joined short-option forms such as -u<value> (the short form of --upload-pack=<value>) when enforcing i…

openSUSE-SU-2026:21874-1 — Security update for python-GitPython

Security update for python-GitPython

PYSEC-2026-3839 — GitPython: command injection via unguarded Git options in `Repo.archive()`, `git.ls_remote()`, and arbitrary file overw…

Affected: PyPI: gitpython

## Summary

## Code analysis

RHSA-2026:44416 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

gitpython: GitPython: Environment variable exfiltration via attacker-controlled clone URL gitpython: GitPython: Arbitrary code execution via command injection due to unguarded Git options gitpython: GitPython: Command Injection via Git option prefix abbreviation gitpython: GitPython: Remote Code Execution via Newline Injection in config_writer()

UBUNTU-CVE-2026-67323

Affected: Ubuntu:Pro:14.04:LTS: python-git, Ubuntu:Pro:16.04:LTS: python-git, Ubuntu:Pro:18.04:LTS: python-git, Ubuntu:Pro:20.04:LTS: python-git, Ubuntu:Pro:22.04:LTS: python-git, Ubuntu:Pro:24.04:LTS: python-git, Ubuntu:Pro:26.04:LTS: python-git