CVE-2026-46628

Twig: The `spaceless` filter implicitly marks its output as safe

Published Jul 14, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6311-1 php-twig security update
Debian DSA Debian DSA DSA-6320-1 php-twig security update
Github GHSA Github GHSA GHSA-4j38-f5cw-54h7 Twig: The `spaceless` filter implicitly marks its output as safe
History
Type Values Removed Values Added
First Time appeared Twigphp
Twigphp twig
Vendors & Products Twigphp
Twigphp twig
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Twig: The `spaceless` filter implicitly marks its output as safe
Weaknesses CWE-116
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 15, 2026, 12:49 PM
Reserved
May 15, 2026, 7:34 PM
Status
Analyzed
Published
Jul 14, 2026, 10:16 PM
Modified
Oct 24, 2026, 10:10 PM