Security Advisory
CVE-2026-46634
9.8
CRITICAL
Vulnerability Description
Twig is a template language for PHP. From 3.9.0 until 3.26.0, template_from_string() compiles an inner template under a synthesized __string_template__ name that can fall outside a SourcePolicyInterface sandbox decision, allowing a sandboxed template that can call template_from_string and include to render an inner template without security policy enforcement. This issue is fixed in version 3.26.0.
Published Date
July 14, 2026
Official Source
NIST NVD Advisory