CVE-2026-26274 PUBLISHED

October: Safe Mode Bypass via Twig Database Write Operations

Assigner: GitHub_M
Reserved: 12.02.2026 Published: 21.04.2026 Updated: 21.04.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 6.6

Product Status

Vendor octobercms
Product october
Versions
  • Version >= 4.0.0, < 4.1.10 is affected
  • Version < 3.7.14 is affected

References

Problem Types

  • CWE-184: Incomplete List of Disallowed Inputs CWE
  • CWE-863: Incorrect Authorization CWE