| Name | CVE-2026-46637 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6311-1, DSA-6320-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| php-twig (PTS) | bullseye | 2.14.3-1+deb11u2 | vulnerable |
| bullseye (security) | 2.14.3-1+deb11u4 | vulnerable | |
| bookworm, bookworm (security) | 3.5.1-1+deb12u3 | fixed | |
| trixie (security), trixie | 3.27.0-0+deb13u1 | fixed | |
| forky, sid | 3.27.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| php-twig | source | bookworm | 3.5.1-1+deb12u3 | DSA-6320-1 | ||
| php-twig | source | trixie | 3.27.0-0+deb13u1 | DSA-6311-1 | ||
| php-twig | source | (unstable) | 3.26.0-1 |
https://symfony.com/blog/cve-2026-46637-html-output-filters-in-twig-extras-incorrectly-declared-is-safe-all