CVE-2026-0758

Local privilege escalation via unescaped shortcut name

Published Jan 23, 2026 · Updated Jan 23, 2026

OS command injection in Siri Shortcuts MCP Server 1.1.0 allows local users to execute code as the service account via shortcutName. The runShortcut path inserts the untrusted shortcut name between single quotes in a shell command assembled for child_process.exec, so a quote can terminate the argument and append shell syntax. Exploitation requires low-privileged code execution on the macOS host; successful injection grants the service account's privileges and can read, alter, or interrupt resources available to that account.

CVSS severity7.8
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Siri Shortcuts MCP Server 1.1.0 allows local users to execute code as the service account via shortcutName. The runShortcut path inserts the untrusted shortcut name between single quotes in a shell command assembled for child_process.exec, so a quote can terminate the argument and append shell syntax. Exploitation requires low-privileged code execution on the macOS host; successful injection grants the service account's privileges and can read, alter, or interrupt resources available to that account.

The record

CVE
CVE-2026-0758
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
David Mohl
Product
Siri Shortcuts MCP Server
Classifications
CWE-78, T1059
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=49d67127ba8373300d0c9d94c059b4c873bf2ef8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

David Mohl · Siri Shortcuts MCP Serverversion=49d67127ba8373300d0c9d94c059b4c873bf2ef8

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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