Medium 5.1Published Jul 14, 2026

CVE-2026-46637Twig: HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`

Updated under an hour ago (Oct 26, 2026, 9:50 PM ET)

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It affects twigphp Twig and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for twigphp Twig

Exploited in the last 30 days

Twig is a template language for PHP. Prior to 3.26.0, several filters in twig/markdown-extra and twig/cssinliner-extra are registered with is_safe => [all], causing Twig to treat plain text or HTML output as safe in HTML, JavaScript, CSS, URL, and other contexts where the output is not properly escaped. This issue is fixed in version 3.26.0.

CVSS: 5.1 MEDIUM (v4.0, CNA)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
Weakness (CWE): CWE-116
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

twigphp Twig twigphp:twig (from the name)	before 3.26.0	CNA record
twig cssinliner-extra twig:cssinliner_extra (from the name)	before 3.26.0	CNA record
twig markdown-extra twig:markdown_extra (from the name)	before 3.26.0	CNA record
symfony twig symfony:twig	before 3.26.0	NVD

References

References

https://github.com/twigphp/Twig/security/advisories/GHSA-jv8m-2544-3pg3	x-refsource-confirm, vendor-advisory
https://github.com/twigphp/Twig/commit/84982072c79a7417b0d158a401d91344f3658299	x-refsource-misc, patch
https://github.com/twigphp/Twig/commit/e36489d3521ecbfc08bdcc61294302557035f14a	x-refsource-misc, patch
https://github.com/twigphp/Twig/releases/tag/v3.26.0	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.