Tutanota (Tuta Mail) is an encrypted email provider. Tutanota allows users to open links in emails in external applications. Prior to version 3.118.12, it correctly blocks the `file:` URL scheme, which can be used by malicious actors to gain code execution on a victims computer, however fails to check other harmful schemes such as `ftp:`, `smb:`, etc. which can also be used. Successful exploitation of this vulnerability will enable an attacker to gain code execution on a victim's computer. Version 3.118.2 contains a patch for this issue.

GitHub, Inc. AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

GitHub, Inc. CWE-20

GitHub, Inc. https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417 [No types assigned]

GitHub, Inc. https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423 [No types assigned]

GitHub, Inc. https://github.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2 [No types assigned]

GitHub, Inc. https://github.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644 [No types assigned]

GitHub, Inc. https://user-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4 [No types assigned]