---
id: CVE-2026-55065
title: Vikunja is an open-source self-hosted task management platform
summary: >-
  Vikunja is an open-source self-hosted task management platform. From 0.24.6
  until 2.4.0, DELETE /api/v1/projects/:project/views/:view permits an
  authenticated user to supply a view identifier from another project while
  authorizing only a…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-285
  - CWE-639
vendor: api
product: code.vikunja.io/api
affected:
  - 'code.vikunja.io/api >= 0.24.6, < 2.4.0'
patched:
  - code.vikunja.io/api 2.4.0
published: '2026-08-28'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:09:13.080'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55065'
references:
  - url: >-
      https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca
    label: security-advisories@github.com
  - url: 'https://github.com/go-vikunja/vikunja/pull/3239'
    label: security-advisories@github.com
  - url: 'https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv
    label: security-advisories@github.com
  - url: >-
      https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-gg93-x632-9ccv'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00348
epssPercentile: 0.28456
aliases:
  - GHSA-gg93-x632-9ccv
ecosystem: go
ingestedAt: '2026-08-28T17:22:56.484Z'
---

## Overview

Vikunja is an open-source self-hosted task management platform. From 0.24.6 until 2.4.0, DELETE /api/v1/projects/:project/views/:view permits an authenticated user to supply a view identifier from another project while authorizing only against an attacker-controlled project identifier. ProjectView.CanDelete in pkg/models/project_view_permissions.go does not establish that the view belongs to the path project, and ProjectView.Delete in pkg/models/project_view.go continues after the scoped project_views delete affects no rows. Its subsequent deletes select task_buckets and task_positions only by project_view_id, allowing cross-tenant destruction of Kanban assignments and ordering while leaving the victim view and tasks intact. This issue is fixed in version 2.4.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-55065)

Affected packages:

- `code.vikunja.io/api >= 0.24.6, < 2.4.0`

Patched in:

- `code.vikunja.io/api 2.4.0`

Source: https://github.com/advisories/GHSA-gg93-x632-9ccv