{"id":"CVE-2026-73226","title":"electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client","summary":"electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.186, electerm allows an authenticated WebSocket client to invoke unintended internal functions through client-controlled func values …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-913"],"published":"2026-08-11","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:55:04.493","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73226","references":[{"url":"https://github.com/electerm/electerm/commit/b1729eb67a4cd9cf1182de69dc2c8e051931740f","label":"security-advisories@github.com"},{"url":"https://github.com/electerm/electerm/pull/4447","label":"security-advisories@github.com"},{"url":"https://github.com/electerm/electerm/releases/tag/v3.15.186","label":"security-advisories@github.com"},{"url":"https://github.com/electerm/electerm/security/advisories/GHSA-8chw-jwc5-8587","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00385,"epssPercentile":0.32471,"ingestedAt":"2026-09-09T21:22:45.529Z","slug":"CVE-2026-73226","body":"## Overview\n\nelecterm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.186, electerm allows an authenticated WebSocket client to invoke unintended internal functions through client-controlled func values in upgrade-func in src/app/server/dispatch-center.js and handleFs in src/app/server/fs.js, exposing Upgrade and fsExport methods that can execute commands, open files, mutate the filesystem, or terminate the process. This issue is fixed in version 3.15.186.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}