CVE-2026-46637
Fixed in a distro release EPSS <1%CVSS 5.1
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.
Products: twigphp Twig, twig cssinliner-extra, twig markdown-extra
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Packagist | twig/cssinliner-extra | 3.26.0 |
| Packagist | twig/markdown-extra | 3.26.0 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | php-twig | 3.5.1-1+deb12u3 |
| Debian 13 | php-twig | 3.27.0-0+deb13u1 |
| Debian 14 | php-twig | 3.26.0-1 |
| Ubuntu 25.10 | php-twig | no fix |
| Ubuntu 26.10 | php-twig | no fix |
| Ubuntu Pro 20.04 LTS | php-twig | no fix |
| Ubuntu Pro 22.04 LTS | php-twig | no fix |
| Ubuntu Pro 24.04 LTS | php-twig | no fix |
| Ubuntu Pro 26.04 LTS | php-twig | no fix |