CVE-2026-43917 Dokploy: Cross-Organization IDOR - Multiple tRPC endpoints missing activeOrganizationId validation

Medium 5.3 Published Updated

Attackers can access or modify resources across different organizations due to missing organization ID validation in multiple API endpoints.

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-2026-43917?

CVE-2026-43917 is a medium-severity missing authorization vulnerability in dokploy, published on 29 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Dokploy is a free, self-hostable Platform as a Service (PaaS). In 0.19.0 and earlier, the protectedProcedure middleware only verifies the user is authenticated - it does NOT enforce organization scoping. Each endpoint must individually verify the resource's org matches the session's activeOrganizationId. This affects the following endpoints: allByType, killProcess, and removeDeployment in deployment.ts; delete in rollbacks.ts; create, one, update, remove, manualBackupPostgres, MySql, Mariadb, Mongo, Compose, WebServer, and listBackupFiles in backup.ts; list, one, delete, update, runManually, and restoreVolumeBackupWithLogs in volume-backups.ts; getNodes, removeWorker, addWorker, and addManager in cluster.ts; and create in mount.ts.

Weakness: CWE-639

Which versions are affected by CVE-2026-43917?

How do I fix CVE-2026-43917?

No fix has been published for CVE-2026-43917 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-2026-43917 being exploited?

There is no known exploitation of CVE-2026-43917 in the wild and no public exploit code.

Sources

Also known as GHSA-f8wj-5c4w-frhg.

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