CVE-2026-48808: Symfony Twig

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Twig is a template language for PHP. Prior to 3.27.0, the column filter passes the active sandbox state as a boolean but does not forward the current Source to SandboxExtension::checkPropertyAllowed(), so SourcePolicyInterface decisions are lost and a template author can read public or magic properties not allowed by the sandbox policy. This issue is fixed in version 3.27.0.

Affected products

• Symfony Twig: before 3.27.0 (fixed in 3.27.0)

Published 2026-07-14. Last modified 2026-07-17.