CVE-2026-46640

Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.(<string>) and import-alias dynamic attribute syntax can concatenate an attacker-controlled string into a MacroReferenceExpression name without identifier validation, causing raw PHP to be emitted into the generated template source and executed at template-load time. This issue is fixed in version 3.26.0.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

CWE

CWE-94

Published

2026-07-14

Modified

2026-10-24

Record from

the NVD, synced 2026-10-25

Affected

• symfony:twig

References

• https://github.com/twigphp/Twig/commit/324fa60545694fa6abe85ded9befcb82e1066bc2
• https://github.com/twigphp/Twig/releases/tag/v3.26.0
• https://github.com/twigphp/Twig/security/advisories/GHSA-45vw-wh46-2vx8

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