CVE-2026-7730

MEDIUM

privsim mcp-test-runner MCP index.ts child_process.spawn os command injection

Title source: cna
STIX 2.1

Description

A weakness has been identified in privsim mcp-test-runner 0.2.0. Impacted is the function child_process.spawn of the file src/index.ts of the component MCP Interface. Executing a manipulation of the argument command can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

References (6)

Core 6
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360905 | privsim mcp-test-runner MCP index.ts child_process.spawn os command injection
https://vuldb.com/vuln/360905
Signature, Permissions Required signature permissions-required
VDB-360905 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360905/cti
Third Party Advisory third-party-advisory
Submit #807541 | privsim mcp-test-runner 0.2.0, Commit 83c84ed053f534774f7de935aeaa7698a5e5f9dc Command Injection
https://vuldb.com/submit/807541
Exploit exploit issue-tracking
https://github.com/BruceJqs/public_exp/issues/37

Scores

CVSS v3 6.3
EPSS 0.0109
EPSS Percentile 60.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-77 CWE-78
Status published
Products (1)
privsim/mcp-test-runner 0.2.0
Published May 04, 2026
Tracked Since May 04, 2026