Vulnerability · Published Nov 8, 2026 · Assigned by VulnCheck
CVE-2026-123522Vikunja before 2.7.1 Task Information Disclosure via Kanban Bucket Move Webhook
High 7.1
In plain English
A high-severity authorization bypass via user-controlled key in vikunja from go-vikunja. There are no confirmed reports of exploitation so far.
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)–no EPSS score yet
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| go-vikunja | vikunja | 0 – before 2.7.1 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
References
- GitHub Security Advisory (GHSA-5q33-h98p-rgh9) vendor-advisory
- VulnCheck Advisory: Vikunja before 2.7.1 Task Information Disclosure via Kanban Bucket Move Webhook third-party-advisory