Vulnerability Description
Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Symfony | Twig | < 3.26.0 |
Related Weaknesses (CWE)
References
- https://github.com/twigphp/Twig/commit/3190b9ae12614dfd58cc5d8f394bac4708b17913Patch
- https://github.com/twigphp/Twig/releases/tag/v3.26.0Release Notes
- https://github.com/twigphp/Twig/security/advisories/GHSA-4j38-f5cw-54h7Vendor Advisory
- https://github.com/twigphp/Twig/security/advisories/GHSA-4j38-f5cw-54h7Vendor Advisory
FAQ
What is CVE-2026-46628?
CVE-2026-46628 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spacel...
How severe is CVE-2026-46628?
CVE-2026-46628 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46628?
Check the references section above for vendor advisories and patch information. Affected products include: Symfony Twig.