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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| twigphp | Twig | < 3.26.0 | — |
| twig | cssinliner-extra | < 3.26.0 | — |
| twig | markdown-extra | < 3.26.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | php-twig | 3.26.0-1 | — |
| Debian 13 | php-twig | 3.27.0-0+deb13u1 | — |
| Debian 12 | php-twig | 3.5.1-1+deb12u3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | php-twig | No fix yet | — |
| Ubuntu 25.10 | php-twig | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | php-twig | No fix yet | — |
| Ubuntu Pro 24.04 LTS | php-twig | No fix yet | — |
| Ubuntu Pro 22.04 LTS | php-twig | No fix yet | — |
| Ubuntu Pro 20.04 LTS | php-twig | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | twig/cssinliner-extra | < 3.26.0 | 3.26.0 | GHSA-jv8m-2544-3pg3 |
| Packagist | twig/markdown-extra | < 3.26.0 | 3.26.0 | GHSA-jv8m-2544-3pg3 |