CVE-2026-72539 Windmill Labs Windmill - Information Disclosure
Authenticated users can read legacy ownerless drafts containing plaintext credentials due to missing ACL checks on null-owner scripts.
- 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-2026-72539?
CVE-2026-72539 is a medium-severity 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
An information disclosure vulnerability in Windmill Labs Windmill through 1.783.0 allows any authenticated workspace member to read legacy ownerless draft scripts that contain plaintext resource credentials. Drafts with a null owner email bypass ACL enforcement and are returned to any workspace member who queries the drafts endpoint. Sensitive credentials stored in these drafts are exposed across ACL boundaries.
Weakness: CWE-200
Which versions are affected by CVE-2026-72539?
How do I fix CVE-2026-72539?
No fix has been published for CVE-2026-72539 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-72539 being exploited?
There is no known exploitation of CVE-2026-72539 in the wild and no public exploit code.
Sources
Also known as GHSA-6xgx-xx3m-pg85.