What is CVE-2026-85211?

CVE-2026-85211 is a high-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.7/10. Published 2026-09-03.

How severe is CVE-2026-85211?

High severity. CVSS v3 base score is 7.7 out of 10.

CVE-2026-85211

CVE-2026-85211

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com

Frequently asked questions

What is CVE-2026-85211?: CVE-2026-85211 is a high-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.7/10. Published 2026-09-03.
How severe is CVE-2026-85211?: High severity. CVSS v3 base score is 7.7 out of 10.