Is CVE-2026-123522 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-123522 being exploited in the wild.

How severe is CVE-2026-123522?

High severity, with a CVSS score of 7.1, published 8 November 2026.

Is there a fix for CVE-2026-123522?

Yes: fixed in 2.7.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-123522 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-123522?

Check whether you run Vikunja at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-123522: Vikunja authorization bypass in Kanban task webhook

CVE-2026-123522 · Severity: high · CVSS 7.1 · Published 2026-11-08

Vikunja is a task management and project planning application. An authenticated user can bypass access controls to read any task in the system by crafting a malicious Kanban board move request, causing the full task content to be sent to their webhook endpoint. This allows disclosure of confidential task details from projects the attacker has no permission to access.

Technologies: Vikunja. Vendors: Vikunja.

Quick answers

Is CVE-2026-123522 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-123522 being exploited in the wild.
How severe is CVE-2026-123522?: High severity, with a CVSS score of 7.1, published 8 November 2026.
Which products and versions are affected?: Vikunja before 2.7.1.
Is there a fix for CVE-2026-123522?: Yes: fixed in 2.7.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-123522 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-123522?: Check whether you run Vikunja at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 2.7.1

Technical details

An authorization bypass vulnerability exists in the Kanban bucket move handler. On a no-op move, TaskBucket.Update dispatches an event with an attacker-controlled task object from the request body before permission-checked reloads. The webhook listener reloads the task by ID without permission verification and routes it based on the attacker-supplied project_id, allowing the attacker to inject a victim's task ID while routing to their own project's webhook. The same flaw affects mention notifications and saved-filter view updates.

Affected products

Vikunja Vikunja before 2.7.1

Timeline

2026-10-22: disclosed
2026-11-08: advisory

References

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