GitPython is a python library used to interact with Git repositories. From version 3.1.30 to before version 3.1.47, GitPython blocks dangerous Git options such as --upload-pack and --receive-pack by default, but the equivalent Python kwargs upload_pack and receive_pack bypass that check. If an application passes attacker-controlled kwargs into Repo.clone_from(), Remote.fetch(), Remote.pull(), or Remote.push(), this leads to arbitrary command execution even when allow_unsafe_options is left at its default value of False. This issue has been patched in version 3.1.47.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8303-1 advisory.

    Santos Gallegos discovered that GitPython did not properly validate paths when resolving certain Git     references. An attacker could possibly use this issue to cause files outside the .git directory to be     accessed, leading to a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS,     Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2023-41040)

    Wes Ring discovered that GitPython did not properly block certain unsafe Git options when they were     provided as Python keyword arguments. An attacker could possibly use this issue to cause arbitrary command     execution. (CVE-2026-42215)

    It was discovered that GitPython did not properly validate clone options before processing them. An     attacker could possibly use this issue to inject unsafe Git configuration, leading to arbitrary command     execution through Git hooks. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04     LTS, and Ubuntu 26.04 LTS. (CVE-2026-42284)

    It was discovered that GitPython did not properly validate reference paths during reference operations. An     attacker could possibly use this issue to write, overwrite, move, or delete files outside the repository.
    (CVE-2026-44243)

    Dan Aridor discovered that GitPython did not properly validate configuration values before writing them to     Git configuration files. An attacker could possibly use this issue to inject unsafe Git configuration,     leading to arbitrary command execution through Git hooks. (CVE-2026-44244)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-ee7b1c75b6 advisory.

    Update to 3.1.50; fixes CVE-2026-42215 / GHSA-mv93-w799-cj2w.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-b4653c757d advisory.

    Update to 3.1.50; fixes CVE-2026-42215 / GHSA-mv93-w799-cj2w.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-585a8768df advisory.

    Update to 3.1.50; fixes CVE-2026-42215 / GHSA-mv93-w799-cj2w.

    ----

    Fixes security defects [GHSA-rpm5-65cw-6hj4](https://github.com/advisories/GHSA-rpm5-65cw-6hj4),     [GHSA-x2qx-6953-8485](https://github.com/advisories/GHSA-x2qx-6953-8485),     [GHSA-7545-fcxq-7j24](GHSA-7545-fcxq-7j24]), and [GHSA-v87r-6q3f-2j67](https://github.com/gitpython-     developers/GitPython/security/advisories/GHSA-v87r-6q3f-2j67).

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - GitPython is a python library used to interact with Git repositories. From version 3.1.30 to before     version 3.1.47, GitPython blocks dangerous Git options such as --upload-pack and --receive-pack by     default, but the equivalent Python kwargs upload_pack and receive_pack bypass that check. If an     application passes attacker-controlled kwargs into Repo.clone_from(), Remote.fetch(), Remote.pull(), or     Remote.push(), this leads to arbitrary command execution even when allow_unsafe_options is left at its     default value of False. This issue has been patched in version 3.1.47. (CVE-2026-42215)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
317096	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : GitPython vulnerabilities (USN-8303-1)	Nessus	Ubuntu Local Security Checks	high
315617	Fedora 43 : GitPython (2026-ee7b1c75b6)	Nessus	Fedora Local Security Checks	high
315614	Fedora 44 : GitPython (2026-b4653c757d)	Nessus	Fedora Local Security Checks	high
314600	Fedora 42 : GitPython (2026-585a8768df)	Nessus	Fedora Local Security Checks	high
311017	Linux Distros Unpatched Vulnerability : CVE-2026-42215	Nessus	Misc.	high

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CVE-2026-42215

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