Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Symfony | Twig | < 3.26.0 |
Related Weaknesses (CWE)
References
- https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8Patch
- https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3Patch
- https://github.com/twigphp/Twig/releases/tag/v3.26.0Release Notes
- https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjpVendor Advisory
FAQ
What is CVE-2026-46633?
CVE-2026-46633 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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, al...
How severe is CVE-2026-46633?
CVE-2026-46633 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-46633?
Check the references section above for vendor advisories and patch information. Affected products include: Symfony Twig.