critical9.8
CVE-2026-46633
Twig: PHP code injection via `{% use %}` template name
Impact
Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | twig/twig | < 3.26.0 | 3.26.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Symfony | Twig | before 3.26.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-7p85-w9px-jpjp
- https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp
- https://github.com/FriendsOfPHP/security-advisories/blob/master/twig/twig/CVE-2026-46633.yaml
- https://symfony.com/cve-2026-46633
- https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8
- https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3
- https://github.com/twigphp/Twig/releases/tag/v3.26.0