CVE-2026-7730

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.

CVSS 4.0

2.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-26)

CWEs

CWE-77, CWE-78

Published

2026-05-04

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

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

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