---
cve: "CVE-2026-65984"
severity: "HIGH"
cvss: 7.5
epss: "0.5%"
vendor: "frangoteam"
kev: false
exploited: false
published: "2026-08-18 20:07:24"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T00:28:20+02:00"
---

# CVE-2026-65984

> 7.5 HIGH · 🧪 PoC

## Beschreibung

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. In 1.3.2 and earlier, POST /api/refresh in server/api/auth/index.js falls back from current user data to decoded.groups, including when the user is deleted or groups is zero, and POST /api/heartbeat in server/api/index.js re-signs inbound JWT claims without validating the current database record. An attacker who possesses a previously issued privileged refresh cookie or access token can continue minting privileged JWTs after account deletion, disablement, role removal, or demotion. Continued refresh-cookie rotation can extend the stale session and preserve unauthorized access to user management, project manipulation, runtime configuration, scripts, and backdoor-account creation. This issue is fixed in version 1.3.3.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 4fa47d0a2a856ed34f427f472fb4450f86e7749b (Commit)
- 68a635aa69608283428de2c7fe9ecf475c5773ab (Commit)

## Referenzen

- <https://github.com/frangoteam/FUXA/security/advisories/GHSA-rg7m-xwqc-mjw6>
- <https://github.com/frangoteam/FUXA/pull/2379>
- <https://github.com/frangoteam/FUXA/commit/4fa47d0a2a856ed34f427f472fb4450f86e7749b>
- <https://github.com/frangoteam/FUXA/releases/tag/v1.3.3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-65984) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_