Answer in brief
CVE-2026-73621 records a Medium severity (CVSS 5.4) vulnerability in GitPython before 3.1.56 Arbitrary File Truncation via Commit.count. The current sources do not mark it as known exploited. The current feed maps gitpython-developers/GitPython (generic), GitPython (pip), gitpython (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps gitpython-developers/GitPython (generic), GitPython (pip), gitpython (pypi). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| gitpython-developers/GitPythongeneric | >=0 <3.1.56 | 3.1.56 |
| GitPythonpip | <=3.1.55 | 3.1.56 |
| gitpythonpypi | >=0 <3.1.56 | 3.1.56 |
Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 3, 2026
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=<path>, causing 'git rev-list --output=<path>' 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).
Quoted source text, attributed separately from HOL analysis.