CVE-2026-79988
High
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.
SeverityHigh
CVSS8.7
Exploit probability—
ProductCms
PublishedAug 27, 2026
First seenAug 27, 2026
Weakness typeCWE-693CWE-693
How to fix
Update
- craftcms cms4.18.3, 5.10.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| craftcms cms | 4.0.0-RC1 ≤ v < 4.18.3, 5.0.0-RC1 ≤ v < 5.10.7 | 4.18.3, 5.10.7 |
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