CVE-2026-46633

EUVD-2026-44558
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.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 49.99%
Affected Products (NVD)
VendorProductVersion
symfonytwig
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
vulnerable
bullseye (security)
vulnerable
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/679447fa29083043665482ccf7d64372472621b8
https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3
https://github.com/twigphp/Twig/releases/tag/v3.26.0
https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp