high8.2
CVE-2026-49981
Twig: Sandbox filter, tag and function allow-list bypass when sandbox state changes between renders for a cached `Template`
Impact
Twig is a template language for PHP. Prior to 3.27.0, the per-template filter, tag, and function allow-list verdict is computed when a Template instance is constructed and can remain cached after sandbox state changes between renders, allowing a later sandboxed render to reuse a template that was originally checked with a different or empty policy. This issue is fixed in version 3.27.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | twig/twig | <= 3.26.0 | 3.27.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Symfony | Twig | before 3.27.0 |