{"id":"CVE-2023-46116","aliases":["EUVD-2023-50375","GHSA-mxgj-pq62-f644"],"status":"published","title":"Remote Code Execution via insufficiently sanitized call to shell.openExternal","description":"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.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01258,"percentile":0.69955,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2023-12-15T13:44:05Z","modified":"2026-10-28T02:30:24Z","products":[{"vendor":"tuta","product":"tutanota"},{"vendor":"tutao","product":"tutanota"}],"references":[{"url":"https://github.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory"]},{"url":"https://github.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2","tags":["x_refsource_MISC","x_transferred","Patch","fix"]},{"url":"https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417","tags":["x_refsource_MISC","x_transferred","Product","web"]},{"url":"https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423","tags":["x_refsource_MISC","x_transferred","Product","web"]},{"url":"https://user-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4","tags":["x_refsource_MISC","x_transferred","Exploit","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46116.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46116","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-46116","title":"Remote Code Execution via insufficiently sanitized call to shell.openExternal","description":"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.","status":"published","published":"2023-12-15T13:44:05.153Z","modified":"2024-10-08T14:14:03.776Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:35:23.309349Z"}],"euvd":[{"id":"EUVD-2023-50375","description":"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.","status":"published","published":"2023-12-15T13:44:05Z","modified":"2024-10-08T14:14:03Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-03T00:27:45.808193Z"}],"nvd":[{"id":"CVE-2023-46116","description":"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.","status":"published","published":"2023-12-15T14:15:14.633Z","modified":"2026-06-17T06:30:10.927Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:08:56.329586Z"}],"osv":[{"id":"CVE-2023-46116","title":"Remote Code Execution via insufficiently sanitized call to shell.openExternal","description":"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.","status":"published","published":"2023-12-15T13:44:05.153Z","modified":"2026-10-28T02:30:24.1591379Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:44:34.287121Z"}]}}