CVE-2026-7446
Fix: VetCoders/mcp-server-semgrep@141335dCVE-2026-7446 is a remote code execution vulnerability in mcp-server-semgrep. O3 Security confirms whether CVE-2026-7446 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
VetCoders mcp-server-semgrep MCP index.ts create_rule os command injection
Real-World Exposure
mcp-server-semgrepReal-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
A vulnerability was detected in VetCoders mcp-server-semgrep 1.0.0. This affects the function analyze_results/filter_results/export_results/compare_results/scan_directory/create_rule of the file src/index.ts of the component MCP Interface. The manipulation of the argument ID results in os command injection. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 1.0.1 is able to mitigate this issue. The patch is identified as 141335da044e53c3f5b315e0386e01238405b771. It is advisable to upgrade the affected component.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | mcp-server-semgrep | all versions | 1.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mcp-server-semgrep. 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 mcp-server-semgrep to 1.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-7446 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-2026-7446 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-2026-7446. 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-2026-7446 in your dependencies?
O3 detects CVE-2026-7446 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.