Medium severity · published Jul 14, 2026
CVE-2026-47732
Twig Sandbox: multiple `__toString()` policy bypasses via unguarded string coercion points
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TW
Twig · twigphp
< 3.26.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47732
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47732
Patch
https://github.com/twigphp/Twig/commit/447d0b2331e01b8fc6e08119ac984e1ef50caef9
Release Notes
https://github.com/twigphp/Twig/releases/tag/v3.26.0
Vendor Advisory
https://github.com/twigphp/Twig/security/advisories/GHSA-pr2w-4gpj-cpq4
More from Twig
9.9
CVE-2026-24425
Twig 2.16.x & 3.9.0-3.25.x Sandbox Bypass via SourcePolicyInterface
9.8
CVE-2026-46634
Twig: `template_from_string()` escapes a SourcePolicy-driven sandbox via synthesized template name
9.8
CVE-2026-46633
Twig: PHP code injection via `{% use %}` template name
9.1
CVE-2026-48807
Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters
9.1
CVE-2026-48806
Twig: Sandbox `__toString()` policy bypass via dynamic mapping keys