---
id: "CVE-2026-112772"
kind: "vulnerability"
aliases: ["CVE-2026-112772"]
title: "Craft CMS: authenticated control panel users can run code on the server"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["craft-cms", "package", "php", "self-hosted"]
not_affected_if: ["already-on-5.11.0-or-later", "no-control-panel-users"]
published_at: "2026-10-19T20:17:54+00:00"
first_seen_at: "2026-10-23T21:57:19+00:00"
updated_at: "2026-10-23T22:33:04+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112772", "first_seen_at": "2026-10-23T21:57:19+00:00"}]
---

# Craft CMS: authenticated control panel users can run code on the server

Craft CMS versions from 5.0.0 before 5.11.0 let a logged-in Control Panel user escape the Twig sandbox through asset transforms. The attacker can attach malicious behaviors or event handlers that execute code as the web server user.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

Run composer show craftcms/cms and check whether the version is 5.0.0 up to but not including 5.11.0.

## Fix

Upgrade craftcms/cms to 5.11.0 or later.

## Timeline

- 2026-10-23T21:57:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112772

## From the sources

Craft CMS from 5.0.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated Control Panel users to escape the Twig sandbox via Asset::getMimeType transforms. Attackers can supply 'as' or 'on' keys passed unfiltered to Craft::createObject, attaching malicious behaviors or event handlers that execute code as the web user.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_