CVE-2026-46637
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Symfony Twig
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-116CWE-116
How to fix
Update
- symfony twig3.26.0 or later
- twig/markdown-extra3.26.0 or later
- twig/cssinliner-extra3.26.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| symfony twig | v < 3.26.0 | 3.26.0 |
| twig/markdown-extraPackagist | v < 3.26.0 | 3.26.0 |
| twig/cssinliner-extraPackagist | v < 3.26.0 | 3.26.0 |
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