CVE-2026-29789 Vito: Cross-project privilege escalation in workflow site-creation actions allows unauthorized server modification
An authenticated attacker can modify servers in other projects by bypassing authorization checks in site-creation workflows, requiring a patch to Vito.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-29789?
CVE-2026-29789 is a critical missing authorization vulnerability in vitodeploy vito, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Vito is a self-hosted web application that helps manage servers and deploy PHP applications into production servers. Prior to version 3.20.3, a missing authorization check in workflow site-creation actions allows an authenticated attacker with workflow write access in one project to create/manage sites on servers belonging to other projects by supplying a foreign server_id. This issue has been patched in version 3.20.3.
Weakness: CWE-862
Which versions are affected by CVE-2026-29789?
It affects 1 product.
Products include Vitodeploy Vito.
How do I fix CVE-2026-29789?
No fix has been published for CVE-2026-29789 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-29789 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29789 exists.
Sources
Also known as GHSA-3m6w-8qh4-qr76.