CVE-2026-33668CWE-285CWE-863

Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

High · published March 24, 2026

CVSS v4.0
7.1
EPSS
1%
Percentile
48.8
In the wild
Unconfirmed
What it is

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue accessing the API and syncing data. Version 2.2.1 patches the issue.

The record
Technical detail
CVSS v4.0
7.1 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00616 · 48.8th percentile
Weaknesses
CWE-285 · Improper Authorization; CWE-863 · Incorrect Authorization
Published
2026-03-24T15:30Z
EPSS history
Timeline
  • 24 MAR 15:30Z
    Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect
    cvelistv5