Umbraco CMS Updates

Umbraco CMS changelog

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Last checked 12 Oct 2026, 21:03 GMT+2

Latest updates

Summary generated 7 Oct 2026.

Umbraco CMS 18.2.1 resolved an authorization bypass allowing low-privileged users to delete media outside their start node.
Umbraco CMS 18.2.1 resolved backoffice users reading content outside their start node via document version endpoints.
Umbraco CMS 17.7.1 resolved an authorization bypass allowing low-privileged users to delete media outside their start node.

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