CVE-2026-85211CWE-639

CVE-2026-85211

High · published September 3, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
34.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
8.3 · 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
EPSS
0.00415 · 34.8th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-03T19:17Z
References (5)
https://github.com/HumanSignal/label-studio · [email protected]https://github.com/HumanSignal/label-studio/blob/1.23.0/label_studio/io_storages/proxy_api.py · [email protected]https://github.com/HumanSignal/label-studio/issues/9924 · [email protected]https://www.vulncheck.com/advisories/label-studio-through-1.23.0-cross-organization-storage-uri-resolution · [email protected]https://github.com/HumanSignal/label-studio/issues/9924 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 14:12Z
    Label Studio through 1.23.0 Cross-Organization Storage URI Resolution
    cvelistv5