CVE-2026-72541 Windmill Labs Windmill - Missing Authorization
Authenticated workspace members can overwrite resource type schemas due to missing authorization checks, potentially corrupting definitions and breaking dependent workflows.
- 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-2026-72541?
CVE-2026-72541 is a medium-severity missing authorization vulnerability in Windmill, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A missing authorization vulnerability in Windmill Labs Windmill through 1.783.0 allows any authenticated workspace member to overwrite any resource type schema via the update_resource_type endpoint. The endpoint omits the administrator permission check that the corresponding delete_resource_type endpoint enforces. An attacker with workspace member privileges can corrupt resource type definitions, breaking workflows that depend on them.
Weakness: CWE-306
Which versions are affected by CVE-2026-72541?
How do I fix CVE-2026-72541?
No fix has been published for CVE-2026-72541 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-2026-72541 being exploited?
There is no known exploitation of CVE-2026-72541 in the wild and no public exploit code.
Sources
Also known as GHSA-m628-hrwj-47mg.