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OpenAdvisories
High · 8.7 CVE-2026-79988 EUVD-2026-67081GHSA-9fvq-jx89-q558

Authenticated RCE through Twig sandbox escape

Published Aug 27, 2026 · Updated Aug 28, 2026 · Assigned by Hackrate

Description

The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework, leading to authenticated RCE similar to previously disclosed vulnerabilities.

Affected products

VendorProductAffectedFixed
craftcms cms 4.0.0-RC1 – < 4.18.3, 5.0.0-RC1 – < 5.10.7 4.18.3

References