CVE-2026-108953

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Source

https://cve.org/CVERecord?id=CVE-2026-108953

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108953.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-108953

Published

2026-10-12T12:13:05Z

Modified

2026-10-15T02:30:59Z

Severity

8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

mac-shell-mcp before 2.0.0 OS Command Injection via execute_command Arguments

Details

mac-shell-mcp before 2.0.0 contains an OS command injection vulnerability that allows MCP clients to bypass the command whitelist by injecting shell metacharacters into execute_command arguments. Attackers or malicious prompts can call a safe command such as pwd with arguments like ';' to run forbidden commands as the server user without approval.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-78"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108953.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "2.0.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "fixed":  "2.0.0"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

References

Affected packages

Git / github.com/cfdude/mac-shell-mcp

Affected ranges

Type

GIT

Repo

https://github.com/cfdude/mac-shell-mcp

Events

Introduced

Fixed

932ce733cde07bb30b1f186303e6692dbb5d087a

Database specific

Show details

{
    "source":  "REFERENCES"
}

Affected versions

v1.*

v1.1.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108953.json"