VULNERABILITY INTELLIGENCE
CVE-2026-33315
CVSS score4.3 MEDIUM
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-03-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be protected behind 2FA (if enabled), such as project name, description, etc. Version 2.2.0 patches the issue.
Weakness classification
- security-advisories@github.com: CWE-288
Primary references
- security-advisories@github.com — Patch
- security-advisories@github.com — Exploit, Mitigation, Vendor Advisory
- security-advisories@github.com — Release Notes