CVE-2026-33334: Vikunja Desktop: Any frontend XSS escalates to Remote Code Execution due to nodeIntegration

Severity: critical (CVSS 9.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-24 · updated 2026-06-17
Weakness: CWE-94

Description

Vikunja is an open-source self-hosted task management platform. Starting in version 0.21.0 and prior to version 2.2.0, the Vikunja Desktop Electron wrapper enables `nodeIntegration` in the renderer process without `contextIsolation` or `sandbox`. This means any cross-site scripting (XSS) vulnerability in the Vikunja web frontend -- present or future -- automatically escalates to full remote code execution on the victim's machine, as injected scripts gain access to Node.js APIs. Version 2.2.0 fixes the issue.

Affected products

go-vikunja vikunja: from 0.21.0 before 2.2.2 — fixed in 2.2.2

How to fix

Upgrade to a fixed version: go-vikunja vikunja 2.2.2. Check the vendor advisory for mitigations.

References

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