CVE-2026-85211: high-severity vulnerability in HumanSignal label-studio
Label Studio through 1.23.0 Cross-Organization Storage URI Resolution
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.3epss 0.4%
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.
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
Affected products
HumanSignal · label-studioRelated CVEs — HumanSignal label-studio
In the same product, most dangerous first.
CVE-2023-47117HIGHObject Relational Mapper Leak Vulnerability in Filtering Task in Label StudioEPSS 4.1%CVE-2024-26152MEDIUMLabel Studio vulnerable to Cross-site Scripting if `<Choices>` or `<Labels>` are used in labeling config EPSS 2.2%CVE-2025-25296MEDIUMLabel Studio allows Cross-Site Scripting (XSS) via GET request to `/projects/upload-example` endpointEPSS 1.9%CVE-2023-47115HIGHLabel Studio XSS Vulnerability on Avatar UploadEPSS 1.4%CVE-2023-43791CRITICALLabel Studio has Hardcoded Django `SECRET_KEY` that can be Abused to Forge Session TokensEPSS 1.2%CVE-2025-25295HIGHLabel Studio has a Path Traversal Vulnerability via image FieldEPSS 0.8%
References
https://github.com/HumanSignal/label-studiohttps://github.com/HumanSignal/label-studio/blob/1.23.0/label_studio/io_storages/proxy_api.pyhttps://github.com/HumanSignal/label-studio/issues/9924https://www.vulncheck.com/advisories/label-studio-through-1.23.0-cross-organization-storage-uri-resolution