GitPython before 3.1.59 Arbitrary File Read via Repo.blame() (CVE-2026-78678) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-78678

GitPython before 3.1.59 Arbitrary File Read via Repo.blame()

Answer in brief

CVE-2026-78678 records a Unknown severity vulnerability in GitPython before 3.1.59 Arbitrary File Read via Repo.blame(). 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 25, 2026Updated Aug 25, 2026Source checked Aug 25, 2026First seen by HOL Aug 25, 2026Material review Aug 25, 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 <3.1.59	3.1.59

Recommended response

Check inventory. Check lockfiles and deployed manifests for gitpython-developers/GitPython.
Review the reported fix. Update gitpython-developers/GitPython to 3.1.59 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 25, 2026

Sources and claim methodology

Upstream source description

GitPython versions before 3.1.59 contain an incomplete denylist in the unsafe_git_revision_options guard that omits --contents and -S options, allowing attackers to read arbitrary files by passing these options to Repo.blame(). Attackers can supply revision values like --contents=/etc/passwd to leak file contents through the blame result returned to the caller.

Quoted source text, attributed separately from HOL analysis.