Denial of Service (DoS)

Overview Affected versions of this package are vulnerable to Denial of Service DoS via the HandleAuthenticationFailure function of the AMF component. An attacker can cause the service to become unavailable by sending specially crafted requests remotely. Details Denial of Service DoS describes a...

CVE-2026-33676

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

CVE-2026-33700

Summary: Vikunja before 2.2.1 had an IDOR on link share deletion. The vulnerable endpoint is DELETE /api/v1/projects/:project/shares/:share, which did not verify that the link share belongs to the project in the URL. An admin of any project could delete link shares from other projects by supplyin...

CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Project Link Share Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33700

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Project Link Share Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Project Link Share Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33678 Vikunja has IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, TaskAttachment.ReadOne queries attachments by ID only WHERE id = ?, ignoring the task ID from the URL path. The permission check in CanRead validates access to the task specified in the URL, but ReadOne loads ...

CVE-2026-33678

Vikunja prior to 2.2.1 suffers an IDOR: TaskAttachment.ReadOne() queries by attachment ID only and ignores the URL task_id, allowing any authenticated user to access or delete attachments across projects by supplying their own task_id. The read path validates the URL task, but ReadOne() loads the...

CVE-2026-33678 Vikunja has IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, TaskAttachment.ReadOne queries attachments by ID only WHERE id = ?, ignoring the task ID from the URL path. The permission check in CanRead validates access to the task specified in the URL, but ReadOne loads ...

CVE-2026-33678 Vikunja has IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, TaskAttachment.ReadOne queries attachments by ID only WHERE id = ?, ignoring the task ID from the URL path. The permission check in CanRead validates access to the task specified in the URL, but ReadOne loads ...

CVE-2026-33676 Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

CVE-2026-33676

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

CVE-2026-33676

Summary: Vikunja, an open-source self-hosted task manager, has a cross-project information disclosure in its API. Before 2.2.1, when returning tasks, the API fills the related_tasks field with full task objects for all related tasks without verifying the requester’s read permission on those proje...

CVE-2026-33676 Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

CVE-2026-33676 Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

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...

CVE-2026-33315

CVE-2026-33315 (Vikunja) is a vulnerability in Vikunja prior to version 2.2.0 where the Caldav endpoint allows login using Basic Authentication. This enables bypass of TOTP on accounts with 2FA enabled, allowing access to protected project information such as name and description. The issue is fi...

CVE-2026-33315 Vikunja has a 2FA Bypass via Caldav Basic Auth

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...

CVE-2026-33315 Vikunja has a 2FA Bypass via Caldav Basic Auth

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...