CVE-2026-123494 Vikunja before 2.7.1 Login CSRF via Migration OAuth Callbacks
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-123494?
CVE-2026-123494 is a medium-severity vulnerability in go-vikunja vikunja, published on 8 Nov 2026.
Official description
Vikunja before 2.7.1 contains a cross-site request forgery vulnerability that allows attackers to import their data into a victim's account because the Todoist, Microsoft To Do, and Trello migration OAuth callbacks lack a bound state parameter. Attackers can authorize their own account, keep the unused callback code or token, and lure a logged-in victim to the migration callback route to auto-import attacker-chosen projects and tasks containing phishing links.
Weakness: CWE-352
Which versions are affected by CVE-2026-123494?
How do I fix CVE-2026-123494?
No fix has been published for CVE-2026-123494 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-123494 being exploited?
There is no known exploitation of CVE-2026-123494 in the wild and no public exploit code.
Sources
Also known as GHSA-vv55-5rp5-mff9, GHSA-xgw3-ccqg-f6ww.