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

> Vikunja Desktop's insecure Electron configuration allows any frontend XSS to escalate to remote code execution via Node.js APIs.

- **Severity:** Medium 6.5 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Mar 2026
- **Updated:** 24 Mar 2026
- **Also known as:** GHSA-xh67-63q3-hf7g

## What is CVE-2026-33334?

CVE-2026-33334 is a medium-severity code injection vulnerability in go-vikunja vikunja, published on 24 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-94 (Improper Control of Generation of Code), CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-33334?

It affects 1 product.


Products: Vikunja Vikunja.

## How do I fix CVE-2026-33334?

No fix has been published for CVE-2026-33334 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-33334 being exploited?

There is no known exploitation of CVE-2026-33334 in the wild and no public exploit code.

## Other vulnerabilities in go-vikunja vikunja

- [CVE-2026-28268](https://insights.sbomify.com/CVE-2026-28268/): Vikunja Vulnerable to Account Takeover via Password Reset Token Reuse (critical 9.8)
- [CVE-2026-27575](https://insights.sbomify.com/CVE-2026-27575/): Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change (critical 9.1)
- [CVE-2026-25935](https://insights.sbomify.com/CVE-2026-25935/): Vikunja Affected by XSS Via Task Preview (high 8.6)
- [CVE-2026-35595](https://insights.sbomify.com/CVE-2026-35595/): Vikunja Affected by Privilege Escalation via Project Reparenting (high 8.3)
- [CVE-2026-33316](https://insights.sbomify.com/CVE-2026-33316/): Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-33334 and fix it if it is affected.

What it is: CVE-2026-33334 is a medium-severity code injection vulnerability in go-vikunja vikunja, published on 24 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-33334 in the wild and no public exploit code.

Affected product: go-vikunja vikunja. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-33334/ (Markdown: https://insights.sbomify.com/CVE-2026-33334/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33334
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33334
- OSV: https://osv.dev/vulnerability/CVE-2026-33334

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-33334/
Summaries are generated and may contain mistakes; the official description above is the record.