TI-2026-38615 Aliases CVE-2026-53542

Termix: Tar option injection in file-manager archive creation allows command execution on managed SSH hosts

HIGH 73CWE-78Published 2026-08-19 · Updated 2026-08-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00661 51st percentileScored 2026-11-07

Fix Fixed Termix (Termix-SSH): 2.3.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Termix-SSH	Termix	before 2.3.2	2.3.2	Patch available	CNA

Termix VendorTermix-SSH Affected before 2.3.2 Fixed in 2.3.2 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:termix:termix::::::::	—	—	Termix-SSH

cpe:2.3:a:termix:termix:*:*:*:*:*:*:*:* Versions — — ·Termix-SSH

Remediation

Fix · CNA Termix (Termix-SSH) Fixed in 2.3.2

Timeline

2026-10-02 Threatist record created from CVE-2026-53542
2026-10-07 EPSS moved to the 50th–90th percentile

References

Other 4

TI-2026-33485 Termix Vulnerable to Remote Code Execution via SSH Tunnel Forward Command Injection CVSS 3.1CRITICAL 9.8
TI-2025-37339 Termix' official Docker image contains an authentication bypass vulnerability CVSS 4.0CRITICAL 9.2
TI-2026-83673 Path traversal in Termix-SSH Termix file transfer CVSS 4.0CRITICAL 9.4
TI-2026-38619 Termix: IDOR — Authenticated user can fetch SSH passwords for hosts owned by other users CVSS 3.1CRITICAL 9.6
TI-2026-38617 Termix: Missing authorization in SSH host credential resolution exposes stored credentials CVSS 3.1CRITICAL 9.6
TI-2026-33481 Termix has an OS Command Injection in File Manager resolvePath endpoint CVSS 3.1CRITICAL 9.9

See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences