CVE-2021-32830
LOWCVE-2021-32830 is a low-severity (CVSS 3.9) OS Command Injection vulnerability in @diez/generation. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether CVE-2021-32830 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Command injection in @diez/generation
Real-World Exposure
@diez/generationReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects npm packages — download data is not available via public APIs for these ecosystems.
Description
The @diez/generation npm package is a client for Diez. The locateFont method of @diez/generation has a command injection vulnerability. Clients of the @diez/generation library are unlikely to be aware of this, so they might unwittingly write code that contains a vulnerability. This issue may lead to remote code execution if a client of the library calls the vulnerable method with untrusted input. All versions of this package are vulnerable as of the writing of this CVE.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @diez/generation | all versions | No fix |
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 dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @diez/generation. 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.
Remediation status
No patched version of @diez/generation has shipped for CVE-2021-32830 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
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.
How O3 protects you
O3 pinpoints whether CVE-2021-32830 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 CVE-2021-32830. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2021-32830 in your dependencies?
O3 detects CVE-2021-32830 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.