CVE-2026-79988

Authenticated RCE through Twig sandbox escape

Published Aug 27, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Authenticated RCE through Twig sandbox escape
First Time appeared Craftcms
Craftcms cms
Weaknesses CWE-693
CPEs cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*
Vendors & Products Craftcms
Craftcms cms
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Hackrate
Published
Updated
Aug 28, 2026, 4:51 PM
Reserved
Aug 25, 2026, 4:39 PM
Status
Deferred
Published
Aug 27, 2026, 5:20 PM
Modified
Aug 28, 2026, 8:20 PM