Vulnerability · Published Jun 5, 2026 · Assigned by GitHub_M
CVE-2026-45746Termix Vulnerable to Arbitrary Command Execution via Session Hijacking
Critical 9.0
In plain English
A critical-severity improper access control in Termix from Termix-SSH. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to version 2.3.2, the File Manager functionality in Termix contains a critical Broken Access Control vulnerability due to improper validation of the sessionId parameter. The backend trusts a client-controlled identifier without verifying that it belongs to the authenticated user. This allows an attacker to manipulate the value and access active File Manager sessions belonging to other users. Since these sessions are tied to SSH connections to remote VPS instances, exploitation allows unauthorized interaction with another user's remote filesystem. Because the File Manager exposes functionality such as file reading, writing, uploading, and execution, this vulnerability enables direct command execution on another user's VPS (RCE). Version 2.3.2 patches the issue.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Termix-SSH | Termix | < 2.3.2 |
Weakness: CWE-284, CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-cx2r-843c-vww8 x_refsource_CONFIRM