---
id: "CVE-2026-115904"
kind: "vulnerability"
aliases: ["CVE-2026-115904"]
title: "Topluyo Desktop for Linux: crafted link runs OS commands as user"
severity: "critical"
cvss: 9.6
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["desktop-client", "linux", "other", "topluyo"]
not_affected_if: ["other-platforms", "web-only-use"]
published_at: "2026-10-28T13:17:05+00:00"
first_seen_at: "2026-10-28T13:33:01+00:00"
updated_at: "2026-10-28T13:33:56+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115904", "first_seen_at": "2026-10-28T13:33:01+00:00"}]
---

# Topluyo Desktop for Linux: crafted link runs OS commands as user

Topluyo Desktop for Linux builds a shell command from user-controlled URLs in its openExternalLinks() routine. An attacker who gets a victim to open a crafted link can run arbitrary operating system commands with the privileges of the user running the app.

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

## How to check

- Run the installed Topluyo Desktop and check its version against `2026.9.2410`
- Check whether the Linux desktop client is installed on user machines that open external links from Topluyo

## Fix

- Upgrade Topluyo Desktop for Linux to `2026.9.2410` or later, which patches the issue

## Timeline

- 2026-10-28T13:33:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115904

## From the sources

Topluyo is a social networking platform. A vulnerability exists in Topluyo Desktop for Linux prior to version 2026.9.2410 where user-controlled URLs are unsafely processed, leading to OS Command Injection via the `openExternalLinks()` routine in `utils.js`. An attacker who controls a target URL can execute arbitrary operating system commands with the privileges of the user running the application upon opening the link. Version 2026.9.2410 patches the issue.

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