CVE-2026-46628

MEDIUM

Twig: The `spaceless` filter implicitly marks its output as safe

Title source: cna
STIX 2.1

Description

Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.

References (3)

Core 3

Scores

CVSS v3 5.4
EPSS 0.0017
EPSS Percentile 6.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-116
Status published
Products (2)
symfony/twig < 3.26.0
twigphp/Twig < 3.26.0
Published Jul 14, 2026
Tracked Since Jul 15, 2026