Hi,

The following vulnerabilities were published for python-git.

CVE-2026-67322[0]:
| 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-2026-67323[1]:
| 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.


CVE-2026-67324[2]:
| GitPython 3.1.50 fails to recognize joined short-option forms such
| as -u<value> (the short form of --upload-pack=<value>) when
| enforcing its default unsafe-option gate. When an application passes
| attacker-influenced clone options into Repo.clone_from(...,
| multi_options=..., allow_unsafe_options=False), an attacker can
| supply -u<helper> to bypass the gate that blocks --upload-pack/-u,
| causing Git to execute the specified helper command during clone.
| Fixed in 3.1.51.


CVE-2026-67325[3]:
| GitPython before 3.1.51 contains an incomplete command injection
| blocklist that fails to account for git's long-option prefix
| abbreviation feature. Attackers can bypass the unsafe options guard
| by using abbreviated option names like upload_p instead of
| upload_pack, which git resolves to dangerous options and executes
| arbitrary commands.


If you fix the vulnerabilities please also make sure to include the
CVE (Common Vulnerabilities & Exposures) ids in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-67322
https://www.cve.org/CVERecord?id=CVE-2026-67322
[1] https://security-tracker.debian.org/tracker/CVE-2026-67323
https://www.cve.org/CVERecord?id=CVE-2026-67323
[2] https://security-tracker.debian.org/tracker/CVE-2026-67324
https://www.cve.org/CVERecord?id=CVE-2026-67324
[3] https://security-tracker.debian.org/tracker/CVE-2026-67325
https://www.cve.org/CVERecord?id=CVE-2026-67325

Regards,
Salvatore

We believe that the bug you reported is fixed in the latest version of
python-git, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1143454@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Emmanuel Arias <eamanu@debian.org> (supplier of updated python-git package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 31 Aug 2026 21:04:23 -0300
Source: python-git
Architecture: source
Version: 3.1.61-1
Distribution: unstable
Urgency: high
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Changed-By: Emmanuel Arias <eamanu@debian.org>
Closes: 1143454 1143602 1144344 1144929 1145672
Changes:
 python-git (3.1.61-1) unstable; urgency=high
 .
   * Team upload.
   * New upstream version 3.1.61.
     - Fix CVE-2026-67323, CVE-2026-67324, CVE-2026-67325, CVE-2026-67322,
       CVE-2026-69097, CVE-2026-73623, CVE-2026-73624, CVE-2026-73625,
       CVE-2026-73622, CVE-2026-73621, CVE-2026-73619, CVE-2026-73620,
       CVE-2026-76217, CVE-2026-76218, CVE-2026-76219, CVE-2026-76220,
       CVE-2026-76221, CVE-2026-76222, CVE-2026-78675, CVE-2026-78676,
       CVE-2026-78677, CVE-2026-78678, CVE-2026-78679 (Closes: #1143454,
       #1143602, #1144344, #1144929, #1145672)
   * d/tests/control: Add procps to the autopkgtest dependencies.
Checksums-Sha1:
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 a0d48c24a098aa3437ea3524b3095e3d65618c67 1022655 python-git_3.1.61.orig.tar.gz
 5fd8979e50dbe3ce029237490547254d02b7ef6f 7332 python-git_3.1.61-1.debian.tar.xz
 7a3a8741d51ab103eadec2eaa337b7e661ab7f24 8174 python-git_3.1.61-1_amd64.buildinfo
Checksums-Sha256:
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Files:
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