CVE-2023-46116

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.

• CWE-20

• https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417Product
• https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423Product
• https://github.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2Patch
• https://github.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644Exploit, Vendor Advisory
• https://user-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4Exploit
• https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417Product
• https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423Product
• https://github.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2Patch
• https://github.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644Exploit, Vendor Advisory
• https://user-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4Exploit

Published

Dec 15, 2023

Last Modified

Jun 17, 2026

Status

Modified