CVE-2026-85211 Label Studio through 1.23.0 Cross-Organization Storage URI Resolution
Attackers can access other tenants' cloud storage objects by bypassing organization filters in Label Studio's storage URI resolution endpoints.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-85211?
CVE-2026-85211 is a high-severity missing authorization vulnerability in HumanSignal label-studio, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Label Studio fails to apply organization filters when resolving storage URIs for tasks and projects in proxy_api.py endpoints. Attackers can access other tenants' cloud storage objects by creating a separate organization and supplying arbitrary file URIs to presign or stream bucket contents.
Weakness: CWE-639
Which versions are affected by CVE-2026-85211?
How do I fix CVE-2026-85211?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-85211 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85211 exists.
Sources
Also known as GHSA-jhvx-775r-cm5m, MINI-p5hf-fhcp-r544.