CVE-2026-46636

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed() unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a Markup-derived class into a sandboxed template (typically to mark a chunk of HTML as safe) inadvertently exposes every public method of that subclass to template authors, regardless of the configured allowedMethods list. This issue has been patched in version 3.27.0.

CVSS

No CVSS.

References

Link	Resource
http://github.com/twigphp/Twig/releases/tag/v3.27.0
https://github.com/twigphp/Twig/security/advisories/GHSA-64jr-qjx4-w2fh
https://security-tracker.debian.org/tracker/CVE-2026-46636
https://security-tracker.debian.org/tracker/DSA-6311-1
https://symfony.com/blog/cve-2026-46636-sandbox-filter-tag-and-function-allow-list-bypass-when-sandbox-state-changes-between-renders

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 22:17

Updated : 2026-09-08 18:17

NVD link : CVE-2026-46636

Mitre link : CVE-2026-46636

CVE.ORG link : CVE-2026-46636

JSON object : View

Products Affected

No product.

CWE

CWE-1336

Improper Neutralization of Special Elements Used in a Template Engine

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