---
cve: "CVE-2026-78863"
severity: "MEDIUM"
cvss: 5.3
epss: "0.5%"
vendor: "liketrek"
kev: false
exploited: false
published: "2026-08-25 11:16:54"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T07:40:07+02:00"
---

# CVE-2026-78863

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- f6af1d67a2630d77dcce39a92ac5599d08d7a5a1 (Commit)

## Referenzen

- <https://vuldb.com/vuln/394939>
- <https://vuldb.com/vuln/394939/cti>
- <https://vuldb.com/cve/CVE-2026-78863>
- <https://vuldb.com/submit/886929>
- <https://github.com/mauriceboe/TREK/security/advisories/GHSA-mjh4-w6fq-54qm>
- <https://github.com/liketrek/TREK/releases/tag/v3.1.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-78863) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_