CVE-2026-53542: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Termix-SSH Termix
Termix versions prior to 2.3.2 contain an OS command injection vulnerability in the archive creation endpoint of the SSH file manager. This flaw allows an authenticated user to craft file basenames that are interpreted as GNU tar options, leading to arbitrary command execution with the privileges of the connected SSH account. The vulnerability is fixed in version 2.3.2.
AI Analysis
Technical Summary
Termix is a web-based server management platform that includes an SSH terminal and file management features. In versions before 2.3.2, the archive creation endpoint in src/backend/ssh/file-manager.ts improperly passes user-controlled file basenames to the tar command without an end-of-options marker and without ensuring operands are relative. This allows a user with SSH file-manager access to specify basenames starting with GNU tar options such as --checkpoint=1 and --checkpoint-action=exec, causing tar to execute arbitrary commands on the managed host with the privileges of the SSH account. This vulnerability enables file disclosure, modification, and service disruption. The issue is resolved in Termix version 2.3.2.
Potential Impact
An authenticated user with access to the SSH file-manager session can execute arbitrary commands on the managed SSH host with the privileges of the connected SSH account. This can lead to unauthorized file disclosure, modification, and disruption of services on the host system.
Mitigation Recommendations
Upgrade Termix to version 2.3.2 or later, where this vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
CVE-2026-53542: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Termix-SSH Termix
Description
Termix versions prior to 2.3.2 contain an OS command injection vulnerability in the archive creation endpoint of the SSH file manager. This flaw allows an authenticated user to craft file basenames that are interpreted as GNU tar options, leading to arbitrary command execution with the privileges of the connected SSH account. The vulnerability is fixed in version 2.3.2.
CVSS v3.1
Score 8.8high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Termix is a web-based server management platform that includes an SSH terminal and file management features. In versions before 2.3.2, the archive creation endpoint in src/backend/ssh/file-manager.ts improperly passes user-controlled file basenames to the tar command without an end-of-options marker and without ensuring operands are relative. This allows a user with SSH file-manager access to specify basenames starting with GNU tar options such as --checkpoint=1 and --checkpoint-action=exec, causing tar to execute arbitrary commands on the managed host with the privileges of the SSH account. This vulnerability enables file disclosure, modification, and service disruption. The issue is resolved in Termix version 2.3.2.
Potential Impact
An authenticated user with access to the SSH file-manager session can execute arbitrary commands on the managed SSH host with the privileges of the connected SSH account. This can lead to unauthorized file disclosure, modification, and disruption of services on the host system.
Mitigation Recommendations
Upgrade Termix to version 2.3.2 or later, where this vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-09T18:13:07.263Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a861420acd9273b4997c7d1
Added to database: 08/19/2026, 20:37:52 UTC
Last enriched: 08/19/2026, 20:52:37 UTC
Last updated: 08/20/2026, 02:21:40 UTC
Views: 6
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