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.
History

Thu, 03 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 03 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
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.
Title Label Studio through 1.23.0 Cross-Organization Storage URI Resolution
First Time appeared Humansignal
Humansignal label Studio
Weaknesses CWE-639
CPEs cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:*
Vendors & Products Humansignal
Humansignal label Studio
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-03T14:12:22.489Z

Updated: 2026-09-03T14:37:19.197Z

Reserved: 2026-09-03T13:44:49.184Z

Link: CVE-2026-85211

cve-icon Vulnrichment

Updated: 2026-09-03T14:32:14.037Z

cve-icon NVD

Status : Deferred

Published: 2026-09-03T15:17:40.257

Modified: 2026-09-10T15:53:23.707

Link: CVE-2026-85211

cve-icon Redhat

No data.