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CVE-2026-33334

Vikunja remote code execution

9.6 CRITICALEPSS 0.70%
  1. Published24 Mar 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

Vikunja≥ 0.21.0 < 2.2.2

Remediation

Fixed in
Vikunja≥ 2.2.2

References

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Frequently asked

Is CVE-2026-33334 being actively exploited?

CVE-2026-33334 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.70%.

How severe is CVE-2026-33334?

CVE-2026-33334 has a CVSS 3.1 base score of 9.6, rated critical. EPSS estimates a 0.70% probability of exploitation.

Which products are affected by CVE-2026-33334?

Affected products include Vikunja.

How do I fix CVE-2026-33334?

Upgrade affected software to a fixed version, for example Vikunja 2.2.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33334 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.