CVE-2026-26274 MEDIUM

CVE-2026-26274: October: Safe Mode Bypass via Twig Database Write Operations

Vendor Octobercms
Product october
Weakness CWE-184
Published April 21, 2026
Last update April 21, 2026

CVSS base score

6.6/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

October is a Content Management System (CMS) and web platform. Prior to 3.7.14 and 4.1.10, a vulnerability was identified in the Twig sandbox security policy that allowed database write operations when cms.safe_mode is enabled. Backend users with Developer permissions could use Twig template markup to execute insert, update, and delete operations on any database table through the query builder, which is included in the sandbox allow-list. This vulnerability is fixed in 3.7.14 and 4.1.10.

Key dates

02Disclosure timeline

April 21, 2026 CVE published
April 21, 2026 Record updated