CVE-2026-33473 Details
Description
Vikunja is an open-source self-hosted task management platform. Starting in version 0.13 and prior to version 2.2.1, any user that has enabled 2FA can have their TOTP reused during the standard 30 second validity window. Version 2.2.1 patches the issue.
A vulnerability exists in Vikunja, an open-source task management platform, allowing users with two-factor authentication (2FA) enabled to reuse their Time-based One-Time Passwords (TOTPs) within the standard 30-second validity period. This issue is present in Vikunja versions 0.13 and 2.2.0, prior to 2.2.1, and can disrupt the effectiveness of 2FA by enabling multiple authentications with the same TOTP code.
Users should update to Vikunja version 2.2.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/go-vikunja/vikunja/security/advisories/GHSA-p747-qc5p-773r | [email protected] | ExploitVendor Advisory |
| https://vikunja.io/changelog/vikunja-v2.2.0-was-released | [email protected] | Release Notes |
| https://vikunja.io/changelog/vikunja-v2.2.2-was-released | [email protected] | Release Notes |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-287 | Improper Authentication | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vikunja vikunja | >= 0.13, < 2.2.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 27, 2026 | Initial Analysis | [email protected] |
| Mar 24, 2026 | New CVE Received | [email protected] |