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CVE-2026-45746 Termix-SSH CVE debrief

CVE-2026-45746 is a critical Broken Access Control vulnerability in the Termix web-based server management platform. The vulnerability exists in the File Manager functionality prior to version 2.3.2. An attacker can manipulate the sessionId parameter to access active File Manager sessions belonging to other users, allowing unauthorized interaction with another user's remote filesystem and enabling direct command execution on another user's VPS (RCE).

Vendor
Termix-SSH
Product
Termix
CVSS
CRITICAL 9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-09
Advisory published
2026-06-05
Advisory updated
2026-06-09

Who should care

Users of Termix versions prior to 2.3.2 should apply the patch immediately to prevent exploitation.

Technical summary

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.

Defensive priority

Critical

Recommended defensive actions

  • Upgrade to Termix version 2.3.2 or later.
  • Review and restrict access to File Manager functionality.

Evidence notes

CVE-2026-45746 has a CVSS score of 9 and is classified as CRITICAL.

Official resources

CVE-2026-45746 was published on 2026-06-05T18:17:30.587Z and modified on 2026-06-09T16:16:41.730Z.