Arbitrary Command Execution Vulnerability in Termix Web-based Server Management Platform
CVE-2026-53545

9.8CRITICAL

Key Information:

Vendor

Termix-ssh

Status
Termix
Vendor
CVE Published:
19 August 2026

What is CVE-2026-53545?

The Termix Web-based Server Management Platform prior to version 2.3.2 contains a vulnerability where an authenticated user can manipulate the shell command patterns during the disconnection of SSH tunnels. By injecting a single quote in the tunnel host field, the attacker can terminate the intended command execution pattern and append additional commands to execute on the source SSH host. This issue compromises the integrity of the server environment, allowing arbitrary code execution with the privileges of the connected SSH account. This vulnerability has been addressed in version 2.3.2.

Affected Version(s)

Termix < 2.3.2

References

https://github.com/Termix-SSH/Termix/security/advisories/...
x_refsource_CONFIRM
https://github.com/Termix-SSH/Termix/pull/874
x_refsource_MISC
https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.