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High 8.7Published Aug 27, 2026
CVE-2026-79988Authenticated RCE through Twig sandbox escape
Updated under an hour ago ()
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It affects craftcms cms. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.7 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-693
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Hackrate
- NVD analysis
- Deferred
- Record last updated
- Aug 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
craftcms cms craftcms:cms (from the name) | from 4.0.0-RC1 before 4.18.3; from 5.0.0-RC1 before 5.10.7 | CNA record |
References
- https://www.hckrt.com/hacktivity/HCKRT-8RQQ7Kthird-party-advisory, technical-description, mitigation
- https://github.com/craftcms/cms/releases/tag/5.10.7release-notes
- https://github.com/craftcms/cmsproduct
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.