CVE-2026-44011
Description
Craft CMS is a content management system (CMS). From 4.0.0 to before 4.17.12 and 5.9.18, Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. The request-controlled condition field layouts data is converted into a live FieldLayout object without a Component::cleanseConfig() boundary. Because Craft configures models before parent::__construct(), attacker-controlled special config keys can take effect during object creation, and FieldLayout initialization then triggers a same-request event. This vulnerability is fixed in 4.17.12 and 5.9.18.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/cmsPackagist | >= 4.0.0, < 4.17.12 | 4.17.12 |
craftcms/cmsPackagist | >= 5.0.0, < 5.9.18 | 5.9.18 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-qrgm-p9w5-rrfwghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-44011ghsaADVISORY
- github.com/craftcms/cms/commit/ab85ca7f5f926994f723f60584054a1f4c4c5de3nvdWEB
- github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5ghsaWEB
- github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfwnvdWEB
News mentions
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