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    CVE-2026-33315

    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.

    Published:Mar 24, 2026
    Last Modified:Mar 25, 2026
    EPS:Mar 24, 2026
    EPSS Score:0.00084
    CVSS Score:4.3

    Affected Products

    Vendor
    Go-vikunja
    Product
    Vikunja
    Vendor
    Vikunja
    Product
    Vikunja

    Exploits

    https://github.com/go-vikunja/vikunja/security/advisories/GHSA-47cr-f226-r4pq

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-127 Directory Indexing
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-55067 (CVSS 5) — Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/{project…
    CVE-2026-55066 (CVSS 7.1) — Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/{project…
    CVE-2026-55065 (CVSS 8.1) — Vikunja is an open-source self-hosted task management platform. From 0.24.6 until 2.4.0, DELETE /api/v1/projec…
    CVE-2026-55064 (CVSS 4.3) — Vikunja is an open-source self-hosted task management platform. From 2.3.0 until 2.4.0, a user with Write but …
    CVE-2026-54766 (CVSS 5.3) — Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplicati…
    CVE-2026-68581 (CVSS 8.6) — Vikunja versions 0.22.0 through 2.3.0 fail to validate the principal type in API token management. Because use…
    CVE-2026-40103 (CVSS 4.3) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's scoped API token enf…
    CVE-2026-35602 (CVSS 5.4) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the Vikunja file import endpoi…
    CVE-2026-35601 (CVSS 4.1) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV output generator bu…
    CVE-2026-35600 (CVSS 5.4) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, task titles are embedded direc…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High