CVE-2026-112777

HighCVSS 7.2/10Last modified Oct 20, 2026

Description

Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a blocklist bypass in the Twig create() function because its class-name checks are case-sensitive while PHP class resolution is not. Attackers with template-execution rights, such as Control Panel administrators, can instantiate SplFileObject via a lowercase class name to read .env secrets or write a PHP file into the webroot for remote code execution.

Metrics

CVSS 3.1 7.2/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-184

Affected software

No affected versions have been published.

Timeline

Published: Oct 19, 2026
Last modified: Oct 20, 2026
NVD status: Deferred

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