CVE-2026-46637

Twig: HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`

Published: Jul 14, 2026Updated: Jul 16, 2026 Sources: CVE List NVDCWE-116

5.4MEDIUM

Description

Twig is a template language for PHP. Prior to 3.26.0, several filters in twig/markdown-extra and twig/cssinliner-extra are registered with is_safe => [all], causing Twig to treat plain text or HTML output as safe in HTML, JavaScript, CSS, URL, and other contexts where the output is not properly escaped. This issue is fixed in version 3.26.0.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-116 CWE-79

Affected Products

twigphp

oss-projectaka twig

TwigLibrary

OSS Libraries / web-framework

cssinliner-extra

markdown-extra

symfony

oss-projectaka symfony framework, twig (related)

twigLibrary

OSS Libraries / web-framework

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://github.com/twigphp/Twig/commit/84982072c79a7417b0d158a401d91344f3658299

github.com

https://github.com/twigphp/Twig/commit/e36489d3521ecbfc08bdcc61294302557035f14a

github.com

https://github.com/twigphp/Twig/releases/tag/v3.26.0

github.com

and 1 more references View all →

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