CVE-2026-33335
8.0 · HIGHOverview
CVE-2026-33335 is a high-severity vulnerability affecting vikunja vikunja. It was published on March 24, 2026 and has a CVSS 3.1 base score of 8.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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 passes URLs from `window.open()` calls directly to `shell.openExternal()` without any validation or protocol allowlisting. An attacker who can place a link with `target="_blank"` (or that otherwise triggers `window.open`) in user-generated content can cause the victim's operating system to open arbitrary URI schemes, invoking local applications, opening local files, or triggering custom protocol handlers. Version 2.2.0 patches the issue.
Remediation
Check the references section for vendor advisories and patches from vikunja. Update vikunja to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| vikunja | vikunja | >= 0.21.0, < 2.2.2 | Affected |
Frequently Asked Questions
What is CVE-2026-33335?
CVE-2026-33335 is a high-severity vulnerability affecting vikunja vikunja. It was published on March 24, 2026 and has a CVSS 3.1 base score of 8.0 (HIGH).
How severe is CVE-2026-33335?
This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-33335?
Check the references section for vendor advisories and patches from vikunja. Update vikunja to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-33335?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-33335 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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