Patch Forecast
Amber warning
Patch this week.

CVE-2026-112770

Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a remote code execution vulnerability in…

Risk score
62/100
CVSS
8.8 v3.1
Exploit chance (30 days)
0.6%
Published
19 Oct 2026

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What to know

What it is
Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a remote code execution vulnerability in the Twig group filter, which invokes non-string arrow arguments as callables without the checkArrow guard used by other arrow-accepting filters. Authenticated control panel users can pass an array-callable such as FileH…
Affected
See advisory
Fix
Upgrade the product to 4.18.8 or 5.11.0 (whichever matches your release line), or later.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 8.8 high

References

Original description

Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a remote code execution vulnerability in the Twig group filter, which invokes non-string arrow arguments as callables without the checkArrow guard used by other arrow-accepting filters. Authenticated control panel users can pass an array-callable such as FileHelper::writeToFile via element-select condition rules to write a webshell to the webroot and execute code as the web user.

Last activity 19 Oct 2026. Patch Forecast updates every hour.