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Vulnerability · Published Apr 28, 2026 · Assigned by VulDB

CVE-2026-7220jackwrichards FastlyMCP fastly_cli Tool fastly-mcp.mjs os command injection

High 7.3

In plain English

A high-severity OS command injection in FastlyMCP from jackwrichards. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.5%top 26.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
jackwrichards FastlyMCP 6f3d0b0e654fc51076badc7fa16c03c461f95620

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:X/RC:R

References