GitPython before 3.1.58 Config Injection via option-name (CVE-2026-76221) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-76221

GitPython before 3.1.58 Config Injection via option-name

Answer in brief

CVE-2026-76221 records a Unknown severity vulnerability in GitPython before 3.1.58 Config Injection via option-name. The current sources do not mark it as known exploited. The current feed maps gitpython-developers/GitPython (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 19, 2026Updated Aug 19, 2026Source checked Aug 19, 2026First seen by HOL Aug 19, 2026Material review Aug 19, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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.

Affected scope and exposure questions

The current feed maps gitpython-developers/GitPython (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
gitpython-developers/GitPythongeneric	>=0 <3.1.58	3.1.58

Recommended response

Check inventory. Check lockfiles and deployed manifests for gitpython-developers/GitPython.
Review the reported fix. Update gitpython-developers/GitPython to 3.1.58 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 19, 2026

Sources and claim methodology

Upstream source description

GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand = touch /tmp/RCE #' to execute arbitrary commands via core.sshCommand or core.hooksPath on the next git operation.

Quoted source text, attributed separately from HOL analysis.