Twig has unguarded calls to `__toString()` when nesting an object into an array
### Description In a sandbox, an attacker can call `__toString()` on an object even if the `__toString()` method is not allowed by the security policy when the object is part of an array or an argument list (arguments to a function or a filter for instance). ### Resolution The sandbox mode now checks the `__toString()` method call on all objects. The patch for this issue is available [here](https://github.com/twigphp/Twig/commit/cafc608ece310e62a35a76f17e25c04ab9ed05cc) for the 3.11.x branch, and [here](https://github.com/twigphp/Twig/commit/d4a302681bca9f7c6ce2835470d53609cdf3e23e) for the 3.x branch. ### Credits We would like to thank Jamie Schouten for reporting the issue and Fabien Potencier for providing the fix.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2024-51754US | — | — | ||
Twig is a template language for PHP. In a sandbox, an attacker can call `__toString()` on an object even if the `__toString()` method is not allowed by the security policy when the… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/FriendsOfPHP/security-advisories/blob/master/twig/twig/CVE-2024-51754.yamlWEB
- https://github.com/twigphp/TwigPACKAGE
- https://github.com/twigphp/Twig/commit/2bb8c2460a2c519c498df9b643d5277117155a73WEB
- https://github.com/twigphp/Twig/security/advisories/GHSA-6377-hfv9-hqf6WEB
- https://lists.debian.org/debian-lts-announce/2025/05/msg00039.htmlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2024-51754ADVISORY
- https://symfony.com/blog/unguarded-calls-to-__tostring-when-nesting-an-object-into-an-arrayWEB
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