CVE-2026-7220

jackwrichards FastlyMCP fastly_cli Tool fastly-mcp.mjs os command injection

State: Published
Severity: 6.9 Medium
Published: Apr 28, 2026
Updated: Apr 28, 2026
Reserved: Apr 27, 2026

Description

A vulnerability has been found in jackwrichards FastlyMCP up to 6f3d0b0e654fc51076badc7fa16c03c461f95620. This impacts an unknown function of the file fastly-mcp.mjs of the component fastly_cli Tool. The manipulation of the argument command leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-78 OS Command Injection
CWE-77 Command Injection

Affected Products

Product	Versions
FastlyMCPjackwrichards	6f3d0b0e654fc51076badc7fa16c03c461f95620Affected

References

VDB-359820 | jackwrichards FastlyMCP fastly_cli Tool fastly-mcp.mjs os command injectionvdb-entrytechnical-description
VDB-359820 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #802138 | jackwrichards fastly-mcp-server 6f3d0b0e654fc51076badc7fa16c03c461f95620 Command Injectionthird-party-advisory
https://github.com/jackwrichards/FastlyMCP/issues/3exploitissue-tracking
https://github.com/jackwrichards/FastlyMCP/product

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