Vulnerability · Published Apr 30, 2026 · Assigned by VulDB
CVE-2026-7446VetCoders mcp-server-semgrep MCP index.ts create_rule os command injection
High 7.3
In plain English
A high-severity OS command injection in mcp-server-semgrep from VetCoders. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | mcp-server-semgrep | 1.0.1 | GHSA-86hp-qxqp-w9wv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| VetCoders | mcp-server-semgrep | 1.0.0 |
Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-360187 | VetCoders mcp-server-semgrep MCP index.ts create_rule os command injection vdb-entry, technical-description
- VDB-360187 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #804100 | VetCoders mcp-server-semgrep 1.0.0 Command Injection third-party-advisory
- https://github.com/VetCoders/mcp-server-semgrep/issues/12 exploit, issue-tracking
- https://github.com/VetCoders/mcp-server-semgrep/pull/15 issue-tracking, patch
- https://github.com/VetCoders/mcp-server-semgrep/commit/141335da044e53c3f5b315e0386e01238405b771 patch
- https://github.com/VetCoders/mcp-server-semgrep/releases/tag/v1.0.1 patch
- https://github.com/VetCoders/mcp-server-semgrep/ product