---
cve: "CVE-2026-45153"
severity: "MEDIUM"
cvss: 4.6
epss: "0.2%"
vendor: "nextcloud"
kev: false
exploited: false
published: "2026-06-01 16:37:12"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T08:12:28+02:00"
---

# CVE-2026-45153

> 4.6 MEDIUM · 🧪 PoC

## Beschreibung

Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 0c7b14c7e4b189c8c48bbaeb6470686dd92476b4 (Commit)

## Referenzen

- <https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5>
- <https://github.com/nextcloud/android/pull/16896>
- <https://hackerone.com/reports/3625210>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45153) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_