Low severityNVD Advisory· Published Mar 24, 2026· Updated Mar 26, 2026
Craft CMS: Anonymous "generate transform" calls for assets can expose private assets via transform URL
CVE-2026-33160
Description
Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, an unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes. The endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL. This issue has been patched in versions 4.17.8 and 5.9.14.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/cmsPackagist | >= 5.0.0-RC1, < 5.9.14 | 5.9.14 |
craftcms/cmsPackagist | >= 4.0.0-RC1, < 4.17.8 | 4.17.8 |
Affected products
2Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-5pgf-h923-m958ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33160ghsaADVISORY
- github.com/craftcms/cms/commit/7290d91639emitrex_refsource_MISC
- github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860ghsaWEB
- github.com/craftcms/cms/releases/tag/4.17.8ghsax_refsource_MISCWEB
- github.com/craftcms/cms/releases/tag/5.9.14ghsax_refsource_MISCWEB
- github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958ghsax_refsource_CONFIRMWEB
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