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CVE-2026-46633Twig: PHP code injection via `{% use %}` template name
Twig is a template language for PHP. Starting in 1.15.1 and prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.
8.7 HIGHEPSS 0.77%Not in KEVNVD: Modified
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.7 | HIGH | 4.0GitHub_M (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-46633
- Status
- Modified
- Assigner (CNA)
- GitHub_M
- Published
- Jul 14, 2026
- Last modified
- 2026-11-04 00:17 UTC
- Weaknesses
- CWE-94 · Improper Control of Generation of Code ('Code Injection')
Affected Products
As published by the CNA in the CVE record.
twigphpTwig1 version range
- >= 1.15.1, < 3.26.0
References
- gist.github.com https://gist.github.com/vladko312/d61b950f168c791db4786b83dc7a81e6
- github.com https://github.com/FriendsOfPHP/security-advisories/blob/master/twig/twig/CVE-2026-46633.yaml
- github.com https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8
- github.com https://github.com/twigphp/Twig/commit/a2c6db7ea7d2c90923e6708019ec1442526d1c30
- github.com https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3
- github.com https://github.com/twigphp/Twig/releases/tag/v3.26.0
- github.com https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp
- symfony.com https://symfony.com/cve-2026-46633