---
id: "CVE-2026-107059"
kind: "vulnerability"
aliases: ["CVE-2026-107059"]
title: "Nextcloud: attacker can force logout and switch victims to attacker profile"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["nextcloud", "runtime", "self-hosted"]
not_affected_if: []
published_at: "2026-10-29T17:17:58+00:00"
first_seen_at: "2026-10-29T17:26:17+00:00"
updated_at: "2026-10-29T17:28:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107059", "first_seen_at": "2026-10-29T17:26:17+00:00"}]
---

# Nextcloud: attacker can force logout and switch victims to attacker profile

A flaw in Nextcloud versionCode 30390190 lets an attacker force a victim's account to log out and switch it to an attacker-controlled profile. The sources describe this as bypassing authentication.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Nextcloud version in the admin overview or with `occ status`

## Timeline

- 2026-10-29T17:26:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-107059

## From the sources

An issue in Nextcloud versionCode 30390190 allows attackers to force victim users to logout of their accounts and switch to an attacker controlled progile, bypassing authentication.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_