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CRITICAL severity

GHSA-67mm-m3wx-j7fr

CRITICALFix: domharrington/node-gitlog#65

GHSA-67mm-m3wx-j7fr is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in gitlog. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-67mm-m3wx-j7fr is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Command injection in gitlog

Also known asCVE-2021-26541
Published
Apr 13, 2021
Updated
Nov 8, 2023
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 8, 2023 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

105other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
gitlognpm
110Kdownloads / week

Description

The gitlog function in src/index.ts in gitlog before 4.0.4 has a command injection vulnerability.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmgitlogall versions4.0.4
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for gitlog. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update gitlog to 4.0.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-67mm-m3wx-j7fr is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-67mm-m3wx-j7fr is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-67mm-m3wx-j7fr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The gitlog function in src/index.ts in gitlog before 4.0.4 has a command injection vulnerability.
O3 Security · Impact-Aware SCA

Is GHSA-67mm-m3wx-j7fr in your dependencies?

O3 detects GHSA-67mm-m3wx-j7fr across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-67mm-m3wx-j7fr: Command injection… | O3 Security