CVE-2024-37301 is a high-severity (CVSS 7.2) CWE-1336 vulnerability in document-merge-service. O3 Security confirms whether CVE-2024-37301 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
document-merge-service vulnerable to Remote Code Execution via Server-Side Template Injection
Real-World Exposure
document-merge-serviceReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Document Merge Service is a document template merge service providing an API to manage templates and merge them with given data. Versions 6.5.1 and prior are vulnerable to remote code execution via server-side template injection which, when executed as root, can result in full takeover of the affected system. As of time of publication, no patched version exists, nor have any known workarounds been disclosed.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | document-merge-service | all versions | 6.5.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for document-merge-service. 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.
Fix
Update document-merge-service to 6.5.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-37301 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 pinpoints whether CVE-2024-37301 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-2024-37301. 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-2024-37301 in your dependencies?
O3 detects CVE-2024-37301 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.