CVE-2026-79763 Termix: MFA-critical operations accept the account password as a sole factor (regression of CVE-2026-45749)
Attackers with session and password can disable MFA or reset backup codes, bypassing two-factor authentication in Termix.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-79763?
CVE-2026-79763 is a medium-severity authentication bypass vulnerability in Termix-SSH Termix, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 2.4.0 until 2.5.1, the POST /users/totp/disable and POST /users/totp/backup-codes endpoints accept the account password as the sole reauthentication factor after a 2.4.0 refactor regressed the two-factor check introduced for CVE-2026-45749. In src/backend/database/routes/user-totp-routes.ts, verifyTotpReauth returns success when bcrypt.compare validates the password, while each endpoint chooses password or totp_code as an interchangeable credential. An attacker who has a victim's authenticated session and knows the password can disable TOTP or regenerate and invalidate backup codes without an authenticator or valid second factor, weakening the account to single-factor authentication. This issue is fixed in version 2.5.1.
Weakness: CWE-308
Which versions are affected by CVE-2026-79763?
How do I fix CVE-2026-79763?
No fix has been published for CVE-2026-79763 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-79763 being exploited?
There is no known exploitation of CVE-2026-79763 in the wild and no public exploit code.
Sources
Also known as GHSA-x9h9-f7jc-8jwj.