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CVE-2026-73226

Electerm WebSocket `upgrade-func` and `fs` handlers allow arbitrary method/function invocation due to missing method-name allowlist PUBLISHED

Description (CNA)

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 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.

Affected (CNA)

Vendor / productVersions
electerm / electermaffected < 3.15.186

CWE

CWE-913

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.