CVE-2026-53542
HighCVSS 8.8Summary
In Termix before 2.3.2, the archive creation endpoint passes selected file basenames to tar without an end-of-options marker and without making operands unambiguously relative. A user can select basenames beginning with GNU tar options such as --checkpoint=1 and --checkpoint-action=exec, causing tar to interpret them as options. The resulting checkpoint action executes commands on the managed SSH host with the privileges of the connected SSH account, allowing file disclosure, modification, and service disruption.
Risk Assessment
The risk includes arbitrary command execution on the SSH host with user privileges, potentially leading to data disclosure, modification, and service disruption.
Recommendation
Upgrade Termix to version 2.3.2 or later. Also add an end-of-options marker (--) and enforce relative paths when creating archives.
Original NVD description (English source)
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.3.2, the archive creation endpoint in src/backend/ssh/file-manager.ts passes selected file basenames to tar without an end-of-options marker and without making the operands unambiguously relative. A user with access to an SSH file-manager session can select basenames beginning with GNU tar options such as --checkpoint=1 and --checkpoint-action=exec, causing tar, tar.gz, tar.bz2, or tar.xz creation to interpret those names as options. The resulting checkpoint action executes commands on the managed SSH host with the privileges of the connected SSH account, allowing file disclosure, modification, and service disruption. This issue is fixed in version 2.3.2.