Label Studio through 1.23.0 Cross-Organization Storage URI Resolution
Priority HIGH 69CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00415 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HumanSignal | label-studio | up to 1.23.0 | — | No fix listed | CNA |
- label-studio VendorHumanSignal Affected up to 1.23.0 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:* | — | — | HumanSignal |
- cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:* Versions — — ·HumanSignal
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-85211
- 2026-10-03 Alias added: GHSA-jhvx-775r-cm5m
References
More HumanSignal vulnerabilities
- TI-2023-23482 Label Studio has Hardcoded Django `SECRET_KEY` that can be Abused to Forge Session Tokens CVSS 3.1CRITICAL 9.8
- TI-2025-18949 Label Studio has a Path Traversal Vulnerability via image Field CVSS 4.0HIGH 8.7
- TI-2025-18951 Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint CVSS 3.1HIGH 8.6
- TI-2023-25457 Object Relational Mapper Leak Vulnerability in Filtering Task in Label Studio CVSS 3.1HIGH 7.5
- TI-2026-58512 Label Studio through 1.23.0 SSRF via Unvalidated Webhook URL CVSS 4.0HIGH 8.4
- TI-2026-17727 Label Studio vulnerable to full account takeover by chaining Stored XSS + IDOR in User Profile via custom_hotkeys field CVSS 4.0HIGH 8.6
Sources
- CVE-2026-85211 · CVE Program
- CVE-2026-85211 · NVD
- FIRST EPSS
- GHSA-jhvx-775r-cm5m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences