---
id: "CVE-2026-116194"
kind: "vulnerability"
aliases: ["CVE-2026-116194"]
title: "Rclone: pCloud OAuth callback CSRF lets web pages plant attacker tokens"
severity: "high"
cvss: 7.6
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "pcloud", "rclone", "self-hosted", "workstations"]
not_affected_if: ["no-pcloud-remote", "version-1.75.2-or-later"]
published_at: "2026-10-25T14:16:59+00:00"
first_seen_at: "2026-10-25T14:41:23+00:00"
updated_at: "2026-10-25T14:42:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116194", "first_seen_at": "2026-10-25T14:41:23+00:00"}]
---

# Rclone: pCloud OAuth callback CSRF lets web pages plant attacker tokens

Rclone's pCloud backend accepts a localhost OAuth callback without checking the state value and trusts a hostname parameter. A malicious web page can send a request to port 53682 during authorization, planting attacker tokens and API hosts so later transfers go to the attacker.

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

## How to check

- Run `rclone version` and compare against the fixed release
- Check whether any remote uses the pCloud backend (`rclone listremotes`, then look for pCloud entries in `rclone.conf`)

## Fix

- Upgrade rclone to `1.75.2` or later
- Re-authorize pCloud remotes after upgrading and revoke any tokens created during an authorization session you did not start

## Timeline

- 2026-10-25T14:41:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116194

## From the sources

Rclone from 1.52.0 before 1.75.2 contains a cross-site request forgery vulnerability in the pCloud backend's localhost OAuth callback, which disables the state check and trusts the hostname parameter. Malicious web pages can send a stateless request to port 53682 during authorization, planting attacker tokens and API hosts so later transfers reach the attacker.

---

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