CVE-2026-73621
Description
A flaw was found in GitPython. An argument injection vulnerability in the Commit.count() method allows an attacker to control options passed to the method. By supplying a crafted output option, an attacker can cause the git rev-list command to truncate an arbitrary file to zero bytes. This enables the destruction or blanking of files at the process's privilege level, leading to data loss.
Statement
Moderate: This GitPython flaw enables arbitrary file truncation to zero bytes when an application passes untrusted input to the Commit.count() method. Exploitation requires an attacker to control arguments supplied to this method, which is not a default behavior in typical Red Hat deployments, thus limiting the direct impact on system integrity.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.4 | N/A | 5.4 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | Low | N/A | Low |
| Availability Impact | Low | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
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