CVE-2026-73621

GitPython before 3.1.56 contains an argument injection vulnerability in the Commit.count() method, which forwards keyword arguments to 'git rev-list' without the check_unsafe_options guard present in the sibling iter_items method. An attacker who can control options passed to Commit.count (e.g., via an application that forwards a user-supplied options dict) can supply output=, causing 'git rev-list --output=' to open and truncate the target file to zero bytes before revision parsing. This allows destruction/blanking of an arbitrary file at the process's privilege level (no content control, 0-byte truncation).

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-88"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73621.json"
}

References

Affected packages

Git / github.com/gitpython-developers/gitpython

Affected ranges

Type

GIT

Repo

https://github.com/gitpython-developers/gitpython

Events

Introduced

Fixed

450a487e267ee9ff94ac807eb632cdf0075b99a9

Database specific

Show details

{
    "cpe": "cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.1.56"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-73621.json"