CVE-2026-79763: Termix two-factor authentication bypass in TOTP disable endpoints

CVE-2026-79763 · Severity: medium · CVSS 5.3 · Published 2026-09-24

Termix is a web-based server management platform that provides SSH terminal access and file editing capabilities. A vulnerability in versions 2.4.0 through 2.5.1 allows attackers with an authenticated session and knowledge of the victim's password to disable two-factor authentication (TOTP) without providing a valid second factor, reducing the account to single-factor authentication and enabling account takeover.

Technologies: Termix-SSH Termix. Vendors: Termix-SSH.

Quick answers

Is CVE-2026-79763 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-79763 being exploited in the wild.
How severe is CVE-2026-79763?
Medium severity, with a CVSS score of 5.3, published 24 September 2026.
Which products and versions are affected?
Termix-SSH Termix 2.4.0 through 2.5.1.
Is there a fix for CVE-2026-79763?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-79763 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-79763?
Check whether you run Termix-SSH Termix at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The POST /users/totp/disable and POST /users/totp/backup-codes endpoints in src/backend/database/routes/user-totp-routes.ts treat password and TOTP code as interchangeable reauthentication factors due to a regression in version 2.4.0. An attacker with a valid authenticated session and the account password can bypass TOTP verification by calling verifyTotpReauth, which accepts the password alone and disables two-factor authentication. The vulnerability requires prior session compromise or password knowledge but no active authenticator device.

Affected products

  • Termix-SSH Termix 2.4.0 through 2.5.1

Timeline

  • 2026-09-24: disclosed: CVE-2026-79763 published

References

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