Vulnerability · Published Jul 14, 2026 · Assigned by GitHub_M

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

High 7.1

In plain English

A high-severity incorrect authorization in Twig from twigphp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.4%top 65.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	php-twig	no fix listed	DEBIAN-CVE-2026-47732
Debian:13	php-twig	3.27.0-0+deb13u1	DEBIAN-CVE-2026-47732
Debian:14	php-twig	3.26.0-1	DEBIAN-CVE-2026-47732
Packagist	twig/twig	3.26.0	GHSA-pr2w-4gpj-cpq4
Ubuntu:25.10	php-twig	no fix listed	UBUNTU-CVE-2026-47732
Ubuntu:26.10	php-twig	no fix listed	UBUNTU-CVE-2026-47732

Affected products (as reported)

Vendor	Product	Versions
twigphp	Twig	< 3.26.0

Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

References

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