Critical severity · published Jul 14, 2026
CVE-2026-46633
Twig: PHP code injection via `{% use %}` template name
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
Twig is a template language for PHP. 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% 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-2026-46633
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46633
Patch
https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8
Patch
https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3
Release Notes
https://github.com/twigphp/Twig/releases/tag/v3.26.0
Vendor Advisory
https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp
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