PT-2026-34003 · Octobercms · October

Published 2026-04-21 · Updated 2026-04-21 · CVE-2026-26274

Mitre

CVSS v3.1

6.6

Medium

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

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.

Fix

Incomplete List of Disallowed Inputs

Incorrect Authorization

Weakness Enumeration

CWE-184

CWE-863

Related Identifiers

CVE-2026-26274

Affected Products

October

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-26274 · Security Note
• https://twitter.com/infoflowcloud/status/2046637669682184697 · Twitter Post
• https://github.com/octobercms/october/security/advisories/GHSA-h6jm-f4hh-fw27 · Note
• https://twitter.com/CVEnew/status/2046636252082942263 · Twitter Post