What’s Vulnerable › Vulnerabilities

CVE-2026-47732: Twig Sandbox: multiple `__toString()` policy bypasses via unguarded string coercion points

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-14 · updated 2026-10-24
• Weakness: CWE-863

Description

Twig is a template language for PHP. Prior to 3.26.0, several Twig language constructs trigger PHP string coercion on a Stringable operand without consulting SecurityPolicy::checkMethodAllowed(), allowing a sandboxed template author to invoke __toString() on objects reachable in the render context through conditional expressions, comparison operators, tests, template-loading tags, dynamic attribute names, spread arguments, the do tag, and the .. range operator. This issue is fixed in version 3.26.0.

Affected products

• twigphp Twig: before 3.26.0 — fixed in 3.26.0

How to fix

Upgrade to a fixed version: twigphp Twig 3.26.0. Check the vendor advisory for mitigations.

References

• https://github.com/twigphp/Twig/commit/447d0b2331e01b8fc6e08119ac984e1ef50caef9
• https://github.com/twigphp/Twig/releases/tag/v3.26.0
• https://github.com/twigphp/Twig/security/advisories/GHSA-pr2w-4gpj-cpq4

Get alerted when CVE-2026-47732 or the next vulnerability affects your stack