CVE-2026-78863 liketrek TREK Pre-2FA mfa_token authService.ts loginUser improper authentication
Remote attackers can bypass authentication in the Pre-2FA mfa_token handler, potentially taking over user accounts.
- 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-2026-78863?
CVE-2026-78863 is a medium-severity authentication bypass vulnerability in liketrek TREK, published on 25 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in liketrek TREK up to 3.0.22. Impacted is the function loginUser of the file server/src/services/authService.ts of the component Pre-2FA mfa_token Handler. The manipulation results in improper authentication. The attack may be performed from remote. Upgrading to version 3.1.0 is recommended to address this issue. Upgrading the affected component is recommended.
Weakness: CWE-287
Which versions are affected by CVE-2026-78863?
How do I fix CVE-2026-78863?
No fix has been published for CVE-2026-78863 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-2026-78863 being exploited?
There is no known exploitation of CVE-2026-78863 in the wild and no public exploit code.
Sources
Also known as GHSA-mjh4-w6fq-54qm, GHSA-x6rr-9jxr-vqvg.