CVE-2026-7730

MEDIUM 6.3

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

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78 CWE-77
Vendor	privsim
Product	mcp-test-runner
Published	May 4, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

privsim / mcp-test-runner

0.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360905 vuldb.com: https://vuldb.com/vuln/360905/cti vuldb.com: https://vuldb.com/submit/807541 github.com: https://github.com/privsim/mcp-test-runner/issues/24 github.com: https://github.com/BruceJqs/public_exp/issues/37 github.com: https://github.com/privsim/mcp-test-runner/

Credits

🔍 BruceJqs (VulDB User) VulDB CNA Team