CVE-2026-46640

EUVD-2026-44569
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.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 48.05%
Affected Products (NVD)
VendorProductVersion
symfonytwig
3.15.0 ≤
𝑥
< 3.26.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
php-twig
bookworm
3.5.1-1+deb12u3
fixed
bookworm (security)
3.5.1-1+deb12u3
fixed
bullseye
2.14.3-1+deb11u2
fixed
bullseye (security)
2.14.3-1+deb11u4
fixed
forky
3.28.0-1
fixed
sid
3.28.0-1
fixed
trixie
3.27.0-0+deb13u1
fixed
trixie (security)
3.27.0-0+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
php-twig
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
Common Weakness Enumeration
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