CVE-2026-105677: Ghost: Remote Code Execution via Theme Translation Files

### Impact A vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to execute arbitrary code on the server via a crafted theme. ### Vulnerable versions This vulnerability is present in Ghost from v6.10.3 up to v6.64.0. ### Patches v6.64.0 contains a fix for this issue. ### How to update For self-hosters using Docker, find [Docker's official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/docker#updating-ghost). If your Ghost is a Ghost-CLI install see our documentation on [updating it to the latest version here](https://docs.ghost.org/update). ### References Ghost thanks [Miguel Segovia Gil](https://github.com/msegoviag) of KPMG, [Alemmi](https://github.com/Alemmi), and [Tomer-PL](https://github.com/Tomer-PL) for disclosing this vulnerability responsibly. ### For more information If you have any questions or comments about this advisory, email us at [[email protected]](mailto:[email protected]).