---
cve: "CVE-2026-55571"
severity: "HIGH"
cvss: 8.2
epss: "0.3%"
vendor: "djust-org"
kev: false
exploited: false
published: "2026-08-25 16:05:49"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T20:05:04+02:00"
---

# CVE-2026-55571

> 8.2 HIGH · 🧪 PoC

## Beschreibung

djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to 1.0.4, LiveViewConsumer.handle_mount sends a `{"type":"navigate","to":...}` frame when login_required, permission_required, or a redirecting on_mount hook denies a LiveView mount, but returns without closing the WebSocket or clearing self.view_instance. A browser follows the redirect, but a raw WebSocket client can ignore it and retain the mounted socket. Because LiveViewConsumer.handle_event does not recheck authentication or authorization, the client can send `{"type":"event",...}` frames that invoke @event_handler methods without an authenticated session, including through handle_live_redirect_mount, enabling unauthorized sensitive reads or mutations. This issue is fixed in version 1.0.4.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 1ae8aa9246b80477de7ddc4d90319a3b267bef04 (Commit)
- c480c4dc931709f9d2c6c0bf643d3f9529016dcc (Commit)

## Referenzen

- <https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247>
- <https://github.com/djust-org/djust/pull/1780>
- <https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04>
- <https://github.com/djust-org/djust/releases/tag/v1.0.4>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-55571) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_