CVE-2026-46640

HIGH

Twig: Arbitrary PHP code execution via `_self.(<string>)` macro-reference compilation

Title source: cna
STIX 2.1

Description

Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.(<string>) and import-alias dynamic attribute syntax can concatenate an attacker-controlled string into a MacroReferenceExpression name without identifier validation, causing raw PHP to be emitted into the generated template source and executed at template-load time. This issue is fixed in version 3.26.0.

References (3)

Core 3

Scores

CVSS v3 8.8
EPSS 0.0040
EPSS Percentile 33.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (2)
symfony/twig 3.15.0 - 3.26.0
twigphp/Twig >= 3.15.0, < 3.26.0
Published Jul 14, 2026
Tracked Since Jul 15, 2026