---
id: "CVE-2026-123522"
page: "https://infrastack.ai/live/CVE-2026-123522"
kind: "vulnerability"
aliases: ["CVE-2026-123522"]
title: "Vikunja: crafted Kanban move lets logged-in users read any task"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["kanban", "package", "self-hosted", "vikunja", "webhooks"]
not_affected_if: ["fixed-version", "no-webhooks"]
published_at: "2026-11-08T02:16:41+00:00"
first_seen_at: "2026-11-08T02:21:09+00:00"
updated_at: "2026-11-08T02:23:29+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123522", "first_seen_at": "2026-11-08T02:21:09+00:00"}]
exploit_sources: []
---

# Vikunja: crafted Kanban move lets logged-in users read any task

Link for people: https://infrastack.ai/live/CVE-2026-123522 (this .md is for agents)

Vikunja before 2.7.1 lets an authenticated user send a crafted task object during a no-op Kanban bucket move, pointing the task ID at a victim's task. The attacker can then read the full contents of that task through their own webhook and forge mention notifications.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Vikunja version in use; versions before `2.7.1` are affected.
- Confirm whether webhooks are configured on projects that users can move tasks in.

## Fix

- Upgrade Vikunja to `2.7.1` or later.

## Timeline

- 2026-11-08T02:21:09+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123522

## Documents

- [advisory] Vendor advisory: github.com https://github.com/go-vikunja/vikunja/security/advisories/GHSA-5q33-h98p-rgh9
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/vikunja-before-2.7.1-task-information-disclosure-via-kanban-bucket-move-webhook

## From the sources

Vikunja before 2.7.1 contains an authorization bypass vulnerability that allows authenticated users to read any task by injecting a crafted task object into a no-op Kanban bucket move. Attackers can set task.id to a victim task and task.project_id to their own project, routing full task contents to their webhook and forging mention notifications.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_