Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290
- https://github.com/Termix-SSH/Termix/pull/874
- https://github.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tag
- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-rwj6-6vh7-45pv
FAQ
What is CVE-2026-53542?
CVE-2026-53542 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 se...
How severe is CVE-2026-53542?
CVE-2026-53542 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53542?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.