CVE-2026-46628

EUVD-2026-44566
Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 21.49%
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/3190b9ae12614dfd58cc5d8f394bac4708b17913
https://github.com/twigphp/Twig/releases/tag/v3.26.0
https://github.com/twigphp/Twig/security/advisories/GHSA-4j38-f5cw-54h7
https://github.com/twigphp/Twig/security/advisories/GHSA-4j38-f5cw-54h7