CVE-2026-33160: Craft CMS may expose private assets through anonymous "generate transform" calls via transform URL
(updated )
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.
References
- github.com/advisories/GHSA-5pgf-h923-m958
- github.com/craftcms/cms
- github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860
- github.com/craftcms/cms/releases/tag/4.17.8
- github.com/craftcms/cms/releases/tag/5.9.14
- github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958
- nvd.nist.gov/vuln/detail/CVE-2026-33160
Code Behaviors & Features
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